At the A1 level, the verb 'heitern' itself is too complex. You won't find it in your basic textbooks. Instead, you learn the adjective 'heiter' in the context of weather. You learn to say 'Das Wetter ist schön' or 'Die Sonne scheint.' If you want to say someone is happy, you use 'glücklich' or 'froh.' The idea of 'brightening' someone's mood is usually expressed with very simple verbs like 'lachen' (to laugh) or 'spielen' (to play). However, knowing that 'heiter' exists helps you prepare for later levels. You might see it on a weather app on your phone: 'heiter' means 'clear/sunny.' At this stage, just recognize the 'ei' sound and the positive feeling of the word.
At A2, you start to encounter separable verbs, and you might see 'aufheitern' in a reading passage about friends helping each other. You understand it means 'to make someone happy.' You can use simple sentences like 'Musik macht mich froh' or 'Ein Witz ist lustig.' You might not use 'heitern' yourself yet, but you are beginning to see how German uses prefixes like 'auf-' to change a word's meaning. You also learn more weather vocabulary, so 'Das Wetter heitert auf' (The weather is clearing up) becomes a useful phrase to recognize in a forecast. You are moving from 'The sun is out' to 'The sun is coming out.'
B1 is where 'aufheitern' and 'erheitern' become active parts of your vocabulary. You are expected to describe feelings and provide emotional support. You can say 'Ich versuche, meine Schwester aufzuheitern, weil sie traurig ist.' You understand the difference between 'aufheitern' (cheering up someone who is sad) and 'erheitern' (amusing someone). You also learn the reflexive 'sich heitern' for weather or facial expressions. This level requires you to handle the grammar of separable verbs in different tenses (e.g., 'Er hat mich aufgeheitert'). You are now using the word to add nuance to your descriptions of social interactions and personal well-being.
At B2, you use 'heitern' and its derivatives with more stylistic flair. You might use the noun 'Aufheiterung' in a formal letter or essay. You understand the subtle difference between 'aufheitern' and 'aufhellen.' You can discuss the 'Heiterkeit' of a piece of literature or a musical composition. Your usage becomes more idiomatic; you might say 'Die Aussichten heitern sich auf' to mean that a situation (like a job search or a political crisis) is looking better. You are comfortable with the passive voice and more complex sentence structures involving these verbs. The word is no longer just about 'making happy'; it's about 'clarity' and 'relief' in various abstract contexts.
At the C1 level, you appreciate the poetic and philosophical history of 'heitern.' You might use the base verb 'heitern' in creative writing or formal speeches to evoke a certain classical elegance. You understand how 'Heiterkeit' was a key concept in German Classicism (Goethe, Schiller). You can distinguish between 'erheitern' (to amuse) and the more intellectual 'belustigen' or 'ergötzen.' You use the verb to describe complex shifts in atmosphere or tone in sophisticated texts. You might analyze how a certain event 'die Miene des Königs heiterte' (brightened the King's expression) in a historical novel. Your mastery includes all nuances of the word family, including rare and archaic uses.
At C2, your command of 'heitern' is indistinguishable from a highly educated native speaker. You can use it in highly specialized domains, such as literary criticism, where you might discuss the 'ungetrübte Heiterkeit' (unclouded serenity) of a poem. You are aware of the word's etymological journey from Old High German 'haitar' (clear, bright). You can use the verb in ironic or highly metaphorical ways. You understand the most subtle connotations—how 'heitern' differs from 'klären' or 'lichten' in a philosophical sense. You can play with the word, using it in puns or complex rhetorical structures, fully aware of its historical weight and its modern versatility.

heitern 30秒で

  • Heitern means to brighten or cheer up, appearing mostly in prefixed forms like 'aufheitern' or 'erheitern'.
  • It is used for both people's emotions and the weather (clearing sky).
  • In B1, 'aufheitern' is the most important form for social interactions.
  • The word connects physical light with internal happiness and serenity.

The German verb heitern is a fascinating linguistic artifact that primarily deals with the concept of 'brightening' or 'clearing.' In its purest, unprefixed form, it is relatively rare in modern spoken German, often replaced by its more common relatives aufheitern or erheitern. However, understanding the root verb is crucial for mastering the B1 level and beyond, as it forms the semantic core of emotional and meteorological clarity. When we talk about heitern, we are essentially talking about the transition from a state of darkness, gloom, or cloudiness into a state of light and cheerfulness. This applies both to the literal sky above us and the figurative 'sky' of the human soul. In literature and poetic contexts, you might find the verb used to describe a face that suddenly loses its frown or a situation that becomes less tense. The word is deeply rooted in the adjective heiter, which means cheerful, serene, or fair (as in weather). To 'heiter' someone is to bring them into that state of Heiterkeit (cheerfulness).

Core Concept
The act of making something (usually the mood or the sky) brighter and clearer.

Das Wetter begann sich am Nachmittag zu heitern, was unsere Stimmung sofort verbesserte.

While you might not hear a teenager say "Ich heitere dich," you will certainly encounter the reflexive form sich heitern in weather reports or classical texts. It suggests a natural, almost organic process of clearing up. In the B1 level, you are expected to understand that this verb is the foundation for aufheitern—the word you actually use when your friend is sad. By learning the root, you unlock a whole family of words related to happiness and clarity. It is like learning the word 'bright' before learning 'brighten' or 'brightness.' The emotional weight of the word is positive and light; it never implies a forced happiness, but rather a natural lifting of a burden. Whether it is a cloud moving away from the sun or a smile returning to a child's face, heitern captures that moment of relief and renewal.

Reflexive Usage
Often used as 'sich heitern' to describe the sky clearing or a person's expression becoming brighter.

Sein Blick heiterte sich plötzlich, als er die gute Nachricht hörte.

In professional or academic settings, the root heitern appears in more complex discussions about aesthetics or psychology. A 'heiteres Werk' (a cheerful work) is one that lightens the spirit. The verb itself carries a certain elegance. It is less about 'making a joke' (which would be belustigen) and more about 'making light.' This distinction is vital for B1 learners who want to express nuance. If a situation is tense, and you do something to make it less heavy, you are effectively performing the action of heitern. It is the verbal equivalent of a sunbeam breaking through a grey November morning in Berlin. It is gentle, welcome, and inherently positive.

Contextual Nuance
Heitern implies a transition from a negative/neutral state to a positive, light-filled state.

Nichts konnte sein Gemüt in dieser dunklen Zeit heitern.

Lastly, consider the physical sensation of heitern. When the sky 'heitert sich auf', the air often feels lighter and the colors more vivid. When a person 'heitert sich', their muscles relax, and their voice might rise in pitch. This holistic change—both external and internal—is what makes heitern such a powerful verb. It is not just about a temporary laugh; it is about a shift in the atmosphere. For a German learner, using this word correctly signifies a deep appreciation for the way German connects physical phenomena (weather) with internal emotional states (mood), a hallmark of the language's expressive power.

Using heitern correctly requires an understanding of its transitivity and its typical partners, the prefixes. In its base form, it is most often used reflexively (sich heitern) or as part of a compound. Let's look at the mechanics. When used reflexively, the subject is usually the sky, the weather, or a person's face/expression. For example, 'Der Himmel heitert sich' (The sky is clearing). Here, the sky is the agent of its own brightening. This is a common way to describe a change in weather without using the more common 'aufklaren'.

Transitive Use
When someone or something causes the brightening: 'Die Musik heiterte seine Seele' (The music brightened his soul).

Ein kurzes Lächeln heiterte ihr ernstes Gesicht.

However, at the B1 level, you will most frequently use the separable version: aufheitern. This is the 'workhorse' of the family. The 'auf-' prefix adds a sense of 'upward' movement or 'opening up.' If your friend is having a bad day, you would say: 'Ich möchte dich aufheitern' (I want to cheer you up). Notice the sentence structure: 'Ich heitere dich auf.' The prefix goes to the end in a main clause. This is a classic German separable verb pattern that learners must master. The base verb heitern provides the meaning, but auf- provides the direction and the modern usage context.

Separable Pattern (aufheitern)
Main clause: 'Er heitert die Stimmung auf.' Subordinate: '...weil er die Stimmung aufheitert.'

Another variation is erheitern. This is an inseparable verb (the 'er-' prefix never leaves the verb). It usually means 'to amuse' or 'to entertain.' While aufheitern is about lifting a mood from sad to neutral/happy, erheitern is about making someone laugh or smile from a neutral state. 'Die Anekdote erheiterte die Gäste' (The anecdote amused the guests). Understanding these prefixes allows you to use the root heitern with surgical precision. You aren't just 'making them happy'; you are either 'lifting them up' (auf) or 'amusing them' (er).

Kannst du mich ein bisschen aufheitern? Ich hatte einen schlechten Tag.

When writing, pay attention to the object. Heitern and its derivatives usually take an accusative object (the person or thing being cheered up). 'Ich heitere ihn (Acc.) auf.' If you use the reflexive form, the 'sich' is also accusative. 'Die Miene heitert sich.' This consistency makes it easier to build sentences once you know the basic grammar. Whether you are describing a clearing sky or a brightening mood, the structure remains logical and predictable, allowing the beauty of the word's meaning to shine through.

Summary of Forms
Heitern (base/poetic), Aufheitern (to cheer up), Erheitern (to amuse), Sich heitern (to clear up).

Nach dem Regen heiterte sich der Himmel über Berlin endlich wieder auf.

If you are walking down the streets of Hamburg or Munich, you might not hear the bare verb heitern very often. However, you will hear its derivatives and the adjective heiter constantly. One of the most common places to encounter the root is in the daily Wetterbericht (weather report). German meteorologists love the word heiter. You will hear: 'Morgen wird es heiter bis wolkig' (Tomorrow will be fair to cloudy). The verb form aufheitern appears when they describe the transition: 'Am Nachmittag heitert es von Westen her auf' (In the afternoon, it will clear up from the west). This is essential 'real-world' German for anyone living in a German-speaking country where weather is a frequent topic of conversation.

Weather Reports
Listen for 'aufheitern' or 'heiter' to know if you need an umbrella or sunglasses.

Der Wetterbericht sagt, dass es sich gegen Abend aufheitern wird.

In a social context, aufheitern is a word of empathy. You will hear it among friends and family. If someone looks 'bedrückt' (depressed/gloomy), a kind soul might say, 'Komm, ich heitere dich ein bisschen auf. Gehen wir ein Eis essen?' (Come on, I'll cheer you up a bit. Shall we go for an ice cream?). It is a warm, supportive word. It is also common in the workplace during stressful periods. A manager might try to 'die Stimmung aufheitern' with a joke or a team lunch. In these contexts, the word acts as a social lubricant, acknowledging a negative state while proposing a positive change.

Social Context
Used when offering support or trying to improve the 'Vibe' of a group.

Literature and classical music are other domains where the root heitern shines. In the works of Goethe or Schiller, heitern and Heiterkeit represent an Enlightenment ideal of serene clarity. You might read about a 'heiterer Geist' (a serene spirit). In music, Mozart's works are often described as heiter. If you attend a concert or read a review in a German newspaper like the Süddeutsche Zeitung, you will see these words used to describe the emotional quality of the art. It suggests a sophistication that goes beyond mere 'happiness'; it is a balanced, intelligent joy.

Die klassische Musik heiterte die melancholische Atmosphäre des Raumes.

Finally, you will encounter the word in psychological and self-help contexts. Phrases like 'Stimmungsaufheller' (mood lifters/antidepressants) use a related root (hell - bright), but the concept is identical to heitern. In magazines and blogs about mental health, you will find tips on 'Wie man sein Gemüt aufheitert' (How to brighten one's mind). This modern usage bridges the gap between the poetic past and the practical present, showing that the need for 'brightening' is a universal human experience that the German language captures perfectly with this single, versatile root.

Media & Literature
Common in art reviews, classic novels, and modern wellness blogs.

One of the most frequent mistakes learners make with heitern is using it without a prefix when they actually mean 'to cheer up.' In modern German, saying "Ich heitere dich" sounds incomplete or overly poetic to the point of being strange. You almost always need auf- or er-. If your goal is to make someone feel better after a disappointment, aufheitern is your only real choice. Using the base verb alone is a classic 'dictionary mistake' where a learner finds the root but doesn't realize the prefix is mandatory for the intended meaning.

The Missing Prefix
Mistake: 'Ich heitere ihn.' Correct: 'Ich heitere ihn auf.'

Falsch: Diese Witze heitern mich. Richtig: Diese Witze erheitern mich.

Another common error is confusing aufheitern with erheitern. While they are related, they are not interchangeable. Aufheitern is about comfort and mood improvement (from sad to okay). Erheitern is about amusement and entertainment (from okay to laughing). If you say a tragic movie 'erheitert' you, people will think you have a very dark sense of humor! Conversely, if you say a stand-up comedian 'heitert dich auf', it sounds like you were in a deep depression before the show started. Choose the prefix based on the starting emotional state of the person.

Prefix Confusion
Aufheitern = Therapy/Comfort. Erheitern = Comedy/Amusement.

Grammatically, the separable verb aufheitern poses the usual challenges. Learners often forget to move the auf to the end of the sentence or forget the -ge- in the perfect tense. 'Ich habe ihn aufheitert' is wrong; it must be 'Ich habe ihn aufgeheitert.' Also, remember that erheitern is inseparable, so it does NOT take a -ge- in the past participle: 'Das hat mich erheitert' (NOT ge-erheitert). These small morphological details are what examiners look for at the B1 level to distinguish between a beginner and an intermediate speaker.

Falsch: Er hat die Stimmung geerheitert. Richtig: Er hat die Stimmung erheitert.

Finally, be careful with the reflexive pronoun. If the sky is clearing up, it is 'Der Himmel heitert sich auf.' Forgetting the sich makes the sentence sound like the sky is actively cheering someone else up. While poetic, it is likely not what you mean in a weather discussion. Similarly, if you say 'Ich heitere mich auf,' it means you are cheering yourself up (perhaps by buying shoes or eating chocolate). Make sure the reflexive pronoun matches the subject and the intended meaning of 'who is brightening whom.'

Reflexive Errors
Always check if the action is happening *to* the subject (reflexive) or *by* the subject to someone else (transitive).

To truly master heitern, you need to know how it fits into the broader landscape of German 'happiness' verbs. The most direct alternative for weather is aufklaren. While aufheitern sounds a bit more 'cheerful' and poetic, aufklaren is the standard, objective term for the sky clearing. If you are writing a technical report, use aufklaren; if you are writing a story about a beautiful day, sich heitern or aufheitern adds a nice touch of color.

Comparison: Weather
Aufklaren: Objective, technical. Sich heitern: Poetic, emotional.

Der Himmel klarte auf (standard) vs. Der Himmel heiterte sich auf (more expressive).

For people, consider erfreuen and belustigen. Erfreuen is 'to please' or 'to delight' and is often more formal. 'Es erfreut mich, Sie zu sehen' (It delights me to see you). It doesn't imply a previous state of sadness like aufheitern does. Belustigen is specifically about making someone laugh, often in a slightly superficial or even mocking way. If you 'belustigst' someone, you are the source of their entertainment. Aufheitern remains the most empathetic choice for genuine emotional support.

Comparison: Mood
Aufheitern: Empathetic, lifting spirits. Erfreuen: Formal delight. Belustigen: Amusement/laughter.

In more formal or literary contexts, you might find verklären. This is a tricky word; it means to glorify or to transfigure, making something look better than it actually is. It shares the 'clarity' root but adds a layer of idealism or even deception. 'Die Erinnerung verklärt die Vergangenheit' (Memory transfigures the past). This is a C1-level word, but it's good to know so you don't confuse it with the more straightforward 'brightening' of heitern. Similarly, aufhellen is used for physically making something lighter (like hair or a room) or figuratively for a mood, much like 'aufheitern'.

Ein guter Witz kann die düsterste Miene aufhellen (or aufheitern).

Lastly, look at the antonyms. The opposite of heitern would be verbs like trüben (to cloud/dim) or verdüstern (to darken/gloom). 'Die schlechte Nachricht trübte seine Laune' (The bad news clouded his mood). Understanding these opposites helps define the boundaries of heitern. It is the movement toward light, whereas trüben is the movement toward shadow. By having these pairs in your mind, you can describe the emotional 'weather' of any situation with confidence and variety, moving beyond simple words like 'gut' or 'schlecht'.

Antonyms
Trüben: To cloud/make dull. Verdüstern: To darken/make gloomy.

How Formal Is It?

豆知識

The word is related to the English word 'hoar' (as in hoarfrost), which originally referred to being white or grey-haired, connecting to the idea of a 'bright' or 'clear' appearance.

発音ガイド

UK /ˈhaɪtɐn/
US /ˈhaɪtərn/
Stress is on the first syllable: HEI-tern.
韻が合う語
scheitern (to fail) weitern (to widen) leitern (ladders - plural) eitern (to fester) erheitern aufheitern begeistern (to inspire/enthuse - near rhyme) meistern (to master - near rhyme)
よくある間違い
  • Pronouncing 'ei' like 'ee' (as in 'heat'). It must be 'eye'.
  • Swallowing the 't' too much; it should be distinct.
  • Over-pronouncing the final 'n' as a separate syllable.
  • Confusing the spelling with 'haiten' (incorrect).
  • Mixing up the stress and putting it on the second syllable.

難易度

読解 3/5

Easy to recognize the root, but prefixes change the meaning slightly.

ライティング 4/5

Requires knowledge of separable and inseparable verb grammar.

スピーキング 3/5

Pronunciation is straightforward, but choosing the right prefix takes practice.

リスニング 3/5

Clearly audible in weather reports and conversations.

次に学ぶべきこと

前提知識

heiter hell Himmel Sonne lachen

次に学ぶ

aufklaren belustigen erfreuen trösten aufhellen

上級

verklären ergötzen Stimmungsaufheller Heiterkeit

知っておくべき文法

Separable Verbs (aufheitern)

Ich heitere dich auf. (Prefix moves to the end in main clauses).

Inseparable Verbs (erheitern)

Das erheitert mich. (Prefix 'er-' stays attached to the verb).

Reflexive Verbs (sich heitern)

Der Himmel heitert sich auf. (Requires a reflexive pronoun in the accusative).

Perfect Tense Construction

Ich habe ihn aufgeheitert (separable) vs. Es hat mich erheitert (inseparable).

Infinitive with 'zu'

Es ist schwer, ihn aufzuheitern. (The 'zu' goes between prefix and base).

レベル別の例文

1

Das Wetter ist heute heiter.

The weather is fair today.

Using the adjective 'heiter' as a predicate.

2

Ich bin heute sehr heiter.

I am very cheerful today.

'Heiter' describes a person's mood.

3

Die Sonne macht mich heiter.

The sun makes me cheerful.

Simple subject-verb-object structure.

4

Ein heiterer Tag in Berlin.

A cheerful day in Berlin.

Adjective ending -er for masculine nominative.

5

Lach doch mal und sei heiter!

Just laugh and be cheerful!

Imperative form of 'sein'.

6

Heiterer Himmel über dem Meer.

Clear sky over the sea.

Attributive adjective usage.

7

Musik ist oft heiter.

Music is often cheerful.

Simple present tense.

8

Guten Morgen, du heiteres Kind!

Good morning, you cheerful child!

Adjective ending -es for neuter vocative.

1

Kannst du mich aufheitern?

Can you cheer me up?

Modal verb with separable infinitive at the end.

2

Er heitert seine kleine Schwester auf.

He is cheering up his little sister.

Separable verb 'aufheitern' in present tense.

3

Das Wetter heitert sich bald auf.

The weather will clear up soon.

Reflexive separable verb.

4

Schokolade heitert mich immer auf.

Chocolate always cheers me up.

Subject is 'Schokolade', object is 'mich'.

5

Wir haben ihn mit einem Witz aufgeheitert.

We cheered him up with a joke.

Perfect tense: 'aufgeheitert'.

6

Die Blumen heitern das Zimmer auf.

The flowers brighten up the room.

Figurative use of 'aufheitern'.

7

Ich brauche etwas zur Aufheiterung.

I need something for cheer-up/encouragement.

Noun 'Aufheiterung' after preposition 'zu'.

8

Heitere dich doch ein bisschen auf!

Do cheer yourself up a bit!

Imperative reflexive.

1

Nichts konnte seine trübe Stimmung heitern.

Nothing could brighten his gloomy mood.

Base verb 'heitern' used transitively (poetic style).

2

Die Nachricht erheiterte die ganze Familie.

The news amused the whole family.

Inseparable verb 'erheitern'.

3

Es ist wichtig, sich gegenseitig aufzuheitern.

It is important to cheer each other up.

'zu' + infinitive with separable verb: 'aufzuheitern'.

4

Sein Gesicht heiterte sich plötzlich auf.

His face suddenly brightened up.

Reflexive use with 'auf-'.

5

Die Komödie hat das Publikum sehr erheitert.

The comedy amused the audience very much.

Perfect tense of 'erheitern' (no -ge-).

6

Ein Spaziergang kann das Gemüt heitern.

A walk can brighten the mind/soul.

Modal verb + base verb.

7

Ich heitere dich auf, wenn du traurig bist.

I'll cheer you up when you are sad.

Main clause with separable verb + subordinate clause.

8

Die Aussicht auf Urlaub heitert alle auf.

The prospect of vacation cheers everyone up.

Abstract subject 'Aussicht'.

1

Das Gespräch trug maßgeblich zur Aufheiterung bei.

The conversation contributed significantly to the brightening of the mood.

Noun 'Aufheiterung' in a complex sentence.

2

Trotz der Krise bewahrte er seine Heiterkeit.

Despite the crisis, he maintained his serenity.

Abstract noun 'Heiterkeit'.

3

Der Himmel heiterte sich nach dem Gewitter zusehends auf.

The sky brightened up visibly after the thunderstorm.

Adverb 'zusehends' with reflexive verb.

4

Seine ironischen Bemerkungen erheiterten die Runde.

His ironic remarks amused the group.

Plural subject with 'erheiterten'.

5

Man versuchte, die düstere Atmosphäre durch Musik zu heitern.

They tried to brighten the gloomy atmosphere with music.

Infinitive clause with 'zu heitern'.

6

Es ist schwer, jemanden aufzuheitern, der alles negativ sieht.

It is hard to cheer someone up who sees everything negatively.

Complex sentence with relative clause.

7

Die Farben des Gemäldes heitern den Betrachter auf.

The colors of the painting cheer up the viewer.

Transitive use with 'aufheitern'.

8

Seine Miene heiterte sich merklich auf, als er den Brief las.

His expression brightened noticeably as he read the letter.

Reflexive with 'auf-' and past tense.

1

Die philosophische Abhandlung war von einer gewissen Heiterkeit durchdrungen.

The philosophical treatise was permeated by a certain serenity.

Passive voice with 'durchdrungen'.

2

Kein weltliches Vergnügen vermochte sein Herz zu heitern.

No worldly pleasure was able to brighten his heart.

Elevated literary style using 'vermochte'.

3

Die Wolkendecke begann sich allmählich zu heitern.

The cloud cover began to clear up gradually.

Reflexive 'sich heitern' in weather context.

4

Er verstand es, selbst die trockensten Fakten zu erheitern.

He knew how to make even the driest facts amusing.

'verstand es... zu' construction.

5

Eine heitere Gelassenheit ist das Ziel vieler Meditationspraktiken.

A cheerful serenity is the goal of many meditation practices.

Compound adjective phrase.

6

Die Kunst sollte den Menschen heitern und über den Alltag erheben.

Art should brighten man and elevate him above everyday life.

Classical German literary ideal.

7

Seine Züge heiterten sich in Erwartung des Wiedersehens.

His features brightened in anticipation of the reunion.

Reflexive past tense without 'auf' (highly literary).

8

Die Aussichten auf eine Einigung heiterten sich im Laufe der Verhandlungen auf.

The prospects for an agreement brightened during the negotiations.

Metaphorical use in political context.

1

In der ungetrübten Heiterkeit seines Spätwerks findet sich kein Platz für Bitterkeit.

In the unclouded serenity of his late work, there is no room for bitterness.

Sophisticated noun phrase 'ungetrübte Heiterkeit'.

2

Es heitert den Geist, sich mit den Sternen zu befassen.

It brightens the spirit to occupy oneself with the stars.

Expletive 'es' as subject.

3

Die Ironie des Schicksals vermag uns bisweilen zu erheitern, wenngleich sie grausam ist.

The irony of fate can sometimes amuse us, even though it is cruel.

Complex conjunction 'wenngleich'.

4

Das Gemüt des Kranken heiterte sich zusehends unter der neuen Therapie.

The patient's mind brightened visibly under the new therapy.

Medical/psychological context with 'Gemüt'.

5

Welch ein heiteres Spiel der Farben bietet uns die Natur!

What a cheerful play of colors nature offers us!

Exclamatory 'Welch ein...'.

6

Seine Miene heiterte sich erst, als der letzte Zweifel ausgeräumt war.

His expression only brightened when the last doubt was cleared away.

Precise use of 'erst' and 'ausgeräumt'.

7

Die Heiterkeit des Gemüts ist die beste Arznei gegen das Altern.

Cheerfulness of the mind is the best medicine against aging.

Genitive construction 'des Gemüts'.

8

Es ist die Aufgabe des Dichters, die Welt zu heitern, nicht sie zu richten.

It is the task of the poet to brighten the world, not to judge it.

Parallel infinitive structure.

よく使う組み合わせ

die Stimmung heitern
das Gemüt heitern
sich aufheitern
jemanden aufheitern
die Miene heitert sich
vom Westen her aufheitern
merklich heitern
kaum zu heitern
die Aussichten heitern sich
durch Witze erheitern

よく使うフレーズ

Heiter bis wolkig

— A standard weather phrase meaning 'fair to cloudy'. Used very often in forecasts.

Heute ist es heiter bis wolkig bei 20 Grad.

Sich die Stimmung nicht trüben lassen

— To not let one's mood be dampened (the opposite of heitern).

Wir lassen uns die Stimmung nicht trüben.

Zur Aufheiterung beitragen

— To contribute to the brightening of the mood.

Sein Witz trug zur allgemeinen Aufheiterung bei.

Aufgeheitert sein

— To be in a better, cheered-up mood.

Nach dem Gespräch war sie sichtlich aufgeheitert.

Ein heiteres Gemüt haben

— To have a naturally cheerful disposition.

Sie hat ein wirklich heiteres Gemüt.

Etwas zur Aufheiterung tun

— To do something to cheer things up.

Ich werde etwas zur Aufheiterung kochen.

Sich sichtlich aufheitern

— To brighten up visibly.

Er heiterte sich sichtlich auf, als er sie sah.

Heiter weiter

— A colloquial way to say 'keep going cheerfully' or 'onward and upward'.

Keine Pause, heiter weiter!

Ein heiteres Lächeln

— A cheerful, serene smile.

Sie schenkte ihm ein heiteres Lächeln.

Die Wolken heitern sich

— The clouds are clearing (poetic).

Die Wolken heitern sich über dem Gipfel.

よく混同される語

heitern vs heilen

Heilen means to heal (wounds/illness). Heitern is about mood/light.

heitern vs haiten

Not a word, but a common spelling mistake for learners.

heitern vs halten

Halten means to hold or stop. It sounds vaguely similar but has no semantic connection.

慣用句と表現

"Aus heiterem Himmel"

— Out of the blue; completely unexpected (literally: from a clear sky).

Die Kündigung kam aus heiterem Himmel.

informal/neutral
"Sich in Heiterkeit auflösen"

— To end in laughter or to dissipate into a cheerful mood.

Der Streit löste sich in Heiterkeit auf.

neutral
"Ein heiteres Bezirksgericht"

— Used ironically for a situation that is chaotic but funny (Austrian origin).

Das war ja ein heiteres Bezirksgericht heute!

informal
"Heile, heile Segen"

— A children's rhyme to comfort someone (related to 'heilen' but often associated with 'aufheitern').

Heile, heile Segen, drei Tage Regen...

child-friendly
"Heiteres Beruferaten"

— A game where you guess professions, but used to describe a guessing game in real life.

Das ist hier doch kein heiteres Beruferaten!

informal
"Das kann ja heiter werden"

— Used sarcastically to mean 'This is going to be a disaster' or 'This will be interesting (in a bad way)'.

Regen bei der Hochzeit? Das kann ja heiter werden.

informal
"Eitel Freude, Sonnenschein"

— Everything is perfect and happy (often used ironically).

Bei denen ist immer eitel Freude, Sonnenschein.

informal
"Die Sonne im Herzen tragen"

— To remain cheerful regardless of external circumstances (the internal 'heitern').

Trag die Sonne im Herzen, dann heitert sich alles.

poetic/informal
"Ein lachendes und ein weinendes Auge"

— Mixed feelings (one laughing, one crying), where 'heitern' would be the laughing part.

Ich gehe mit einem lachenden und einem weinenden Auge.

neutral
"Strahlen wie ein Honigkuchenpferd"

— To grin broadly (the result of being 'aufgeheitert').

Er strahlt wie ein Honigkuchenpferd.

informal

間違えやすい

heitern vs aufklaren

Both refer to weather clearing.

Aufklaren is the standard technical/objective term. Sich aufheitern is more poetic/subjective.

Der Himmel klart auf (Forecast) vs. Der Himmel heitert sich auf (Story).

heitern vs aufhellen

Both mean 'to brighten'.

Aufhellen is often physical (hair, colors, light). Aufheitern is almost exclusively emotional or meteorological.

Ich lasse meine Haare aufhellen. Er heitert mich auf.

heitern vs erheitern

Both relate to a better mood.

Erheitern is for amusement/laughter. Aufheitern is for cheering someone up from sadness.

Der Film hat mich erheitert. Deine Worte haben mich aufgeheitert.

heitern vs belustigen

Both relate to making someone happy.

Belustigen is specifically about fun/entertainment, often superficial. Heitern is deeper and more about serenity.

Die Kinder belustigen sich. Das Gedicht heiterte seinen Geist.

heitern vs erfreuen

Both mean to make someone feel good.

Erfreuen is 'to please/delight' (often formal). Aufheitern is 'to cheer up' (remedial).

Es erfreut mich, Sie zu sehen. Er heitert sie nach dem Weinen auf.

文型パターン

A2

[Subject] heitert [Object] auf.

Die Musik heitert mich auf.

B1

[Subject] hat [Object] aufgeheitert.

Du hast mich wirklich aufgeheitert.

B1

Es heitert sich auf.

Am Nachmittag heitert es sich auf.

B2

[Subject] trägt zur Aufheiterung bei.

Das Geschenk trug zur Aufheiterung bei.

B2

[Subject] erheitert [Object].

Die Anekdote erheiterte die Gäste.

C1

Die Miene heitert sich.

Seine Miene heiterte sich sichtlich.

C1

[Subject] vermag zu heitern.

Nichts vermag sein Herz zu heitern.

C2

In Heiterkeit [Verb]...

In Heiterkeit verbrachte er seine Tage.

語族

名詞

Heiterkeit (cheerfulness/serenity)
Aufheiterung (cheering up/brightening)
Erheiterung (amusement)
Stimmungsaufheller (mood lifter)

動詞

aufheitern (to cheer up/clear up)
erheitern (to amuse)
aufhellen (to lighten)
verklären (to transfigure/glorify)

形容詞

heiter (cheerful/clear)
ungetrübt (unclouded/pure)
aufheiternd (cheering/brightening)
erheiternd (amusing)

関連

hell (bright)
Himmel (sky)
Licht (light)
Freude (joy)
Glück (happiness)

使い方

frequency

The root 'heiter' is very common; the verb 'aufheitern' is common; 'erheitern' is moderately common; 'heitern' (alone) is rare.

よくある間違い
  • Ich heitere dich. Ich heitere dich auf.

    The base verb 'heitern' is almost never used alone in modern spoken German. You need the prefix 'auf-'.

  • Ich habe ihn aufheitert. Ich habe ihn aufgeheitert.

    Separable verbs in the perfect tense require the '-ge-' to be placed between the prefix and the stem.

  • Das hat mich geerheitert. Das hat mich erheitert.

    Inseparable verbs (starting with er-, be-, ver-, etc.) do NOT take the '-ge-' in the past participle.

  • Der Himmel heitert auf. Der Himmel heitert sich auf.

    When the sky clears, the verb is reflexive. You need the 'sich'.

  • Er heitert mich durch den Witz. Er erheitert mich durch den Witz.

    If the goal is amusement/laughter, 'erheitern' is the correct choice, not 'aufheitern'.

ヒント

Separable vs Inseparable

Always remember: 'aufheitern' is separable (aufgeheitert), while 'erheitern' is inseparable (erheitert). This is a common test point in B1 exams.

Weather Link

Use the weather to remember the word. A 'heiter' sky is clear. Therefore, 'heitern' is the process of getting to that clear state.

Empathy First

When a friend is sad, 'aufheitern' is your best friend. It shows you care about their 'Stimmung' (mood).

Amusement vs Comfort

If you want to say something is funny, use 'erheitern'. If you want to say something is comforting, use 'aufheitern'.

The End Position

In a sentence like 'Ich heitere dich auf', make sure to wait until the very end to say 'auf'. It's the 'climax' of the verb.

Poetic Flair

In a story, 'Seine Miene heiterte sich' sounds much more professional than 'Er wurde glücklich'.

Root Recognition

Whenever you see 'heit', think of 'clarity' or 'brightness'. It will help you decode many related words.

Out of the Blue

Memorize 'aus heiterem Himmel'. It's one of the most common German idioms and uses the adjective form of the verb.

Weather Obsession

Germans talk about the weather a lot. Knowing 'aufheitern' will make you sound very integrated into the culture.

Self-Care

Use 'sich aufheitern' when talking about self-care routines. It's a very modern and useful way to use the verb.

暗記しよう

記憶術

Think of 'HEItern' and 'HI' (High). When you are HEI-tern, your mood is HIGH and the sky is HIGH and clear. The 'ei' sounds like 'eye'—you see the bright sky with your EYE.

視覚的連想

Imagine a dark cloud with a zipper. When you 'heitern' the sky, you unzip the cloud to reveal a bright, smiling sun underneath. For a person, imagine a dim lightbulb suddenly becoming bright.

Word Web

Heiter (Adjective) Aufheitern (Action) Himmel (Sky) Sonne (Sun) Lächeln (Smile) Stimmung (Mood) Erheitern (Amuse) Klar (Clear)

チャレンジ

Try to use 'aufheitern' in three different tenses today: 'Ich heitere dich auf', 'Ich habe dich aufgeheitert', and 'Ich werde dich aufheitern'.

語源

Derived from the Old High German 'haitar', which meant 'clear', 'bright', or 'shining'. It has cognates in other Germanic languages, though many have lost the specific verb form.

元の意味: To be bright or shining, specifically referring to the sky or light.

Germanic

文化的な背景

There are no major sensitivities, but 'erheitern' can sometimes sound slightly patronizing if used when someone is genuinely grieving, as it implies amusement rather than deep comfort.

The English equivalent 'cheer up' is more common than 'brighten' in social contexts, but 'brighten up' is a perfect literal translation for both mood and weather.

Mozart's music is frequently described as 'heiter'. Goethe's 'Italienische Reise' often uses 'heiter' to describe the Mediterranean light. The TV show 'Heiter bis tödlich' (Cheerful to Deadly) plays on the weather forecast phrase.

実生活で練習する

実際の使用場面

Weather Forecast

  • Heiter bis wolkig.
  • Es heitert auf.
  • Sonnige Aufheiterungen.
  • Vom Westen her heiternd.

Supporting a Friend

  • Ich will dich aufheitern.
  • Lass dich aufheitern!
  • Was kann dich aufheitern?
  • Das wird dich sicher aufheitern.

Entertainment/Comedy

  • Das Publikum war erheitert.
  • Eine erheiternde Geschichte.
  • Er erheitert uns immer.
  • Zur Erheiterung aller.

Literature/Art

  • Ein heiteres Werk.
  • Die Miene heiterte sich.
  • Heitere Gelassenheit.
  • Den Geist heitern.

Business/Economy

  • Die Stimmung heitert sich auf.
  • Die Aussichten heitern sich auf.
  • Anzeichen für eine Aufheiterung.
  • Der Markt heitert sich auf.

会話のきっかけ

"Was heitert dich an einem regnerischen Tag am meisten auf?"

"Kennst du einen guten Witz, um die Stimmung hier aufzuheitern?"

"Glaubst du, dass Musik das Gemüt wirklich nachhaltig heitern kann?"

"Hat sich das Wetter bei dir heute schon ein bisschen aufgeheitert?"

"Was tust du, wenn du merkst, dass ein Freund eine Aufheiterung braucht?"

日記のテーマ

Schreibe über eine Situation, in der dich jemand unerwartet aufgeheitert hat. Was hat die Person getan?

Beschreibe den Moment, wenn sich der Himmel nach einem langen Sturm heitert. Wie fühlst du dich dabei?

Welche Hobbys dienen dir persönlich als Stimmungsaufheller, wenn es dir mal nicht so gut geht?

Reflektiere über den Begriff 'Heiterkeit'. Ist es für dich mehr als nur Glücklichsein?

Stell dir vor, du müsstest eine 'Aufheiterungs-Box' für einen Freund packen. Was wäre darin?

よくある質問

10 問

Technically yes, but only in very poetic or archaic contexts. In modern German, you should always use 'aufheitern' or 'erheitern' to sound natural. For example, 'Ich heitere dich auf' is correct, whereas 'Ich heitere dich' sounds like something from an 18th-century poem.

'Aufklaren' is the most common and neutral word for the sky clearing up. 'Sich aufheitern' (reflexive) is also used but sounds slightly more descriptive and 'cheerful'. In a weather report, you'll hear both, but 'aufklaren' is more frequent.

No. 'Lachen' is the physical act of laughing (a verb). 'Erheitern' is the act of making someone feel amused or cheerful so that they might laugh. 'Er erheitert mich' means 'He amuses me'.

Yes, but it's a bit formal. You'll see it in news reports (e.g., 'Das sorgte für allgemeine Heiterkeit' - That caused general amusement) or in literature. In daily life, people usually just say 'Gute Laune'.

It's a regular verb. Präteritum: 'er heiterte auf'. Perfekt: 'er hat aufgeheitert'. Remember that the 'auf' is separable, so it goes to the end in the simple past, and the 'ge' goes between 'auf' and 'heitert' in the perfect tense.

Yes, figuratively. 'Die neuen Vorhänge heitern das Zimmer auf' (The new curtains brighten up the room). It means they make the atmosphere of the room more cheerful.

It's an idiom meaning 'out of the blue' or 'suddenly and unexpectedly'. It literally means 'from a clear (heiter) sky', referring to how a lightning bolt is most surprising when the sky is clear.

No, 'erheitern' is an inseparable verb. The prefix 'er-' never leaves the verb. So you say 'Das erheitert mich' and 'Das hat mich erheitert' (no -ge-).

Yes, reflexively. 'Ich muss mich ein bisschen aufheitern' (I need to cheer myself up). This is very common when you are having a bad day and decide to do something nice for yourself.

The base concept is A2/B1, but using the various prefixed forms and the reflexive usage correctly is a key B1 skill. Higher levels (B2/C1) involve more metaphorical and literary uses.

自分をテスト 200 問

writing

Write a sentence using 'aufheitern' to describe cheering up a friend.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Use 'erheitern' in a sentence about a funny movie.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Describe the weather using 'sich aufheitern'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Write a sentence with 'Aufheiterung'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Use the idiom 'aus heiterem Himmel'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Write a sentence in the perfect tense with 'aufheitern'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Explain why you use 'erheitern' for a joke.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Create a poetic sentence with 'heitern'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Use 'aufzuheitern' in an infinitive clause.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Describe a 'heiterer Mensch'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Write a weather forecast using 'heiter bis wolkig'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Use 'sich heitern' in the past tense.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Translate: 'I need to cheer myself up.'

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Translate: 'The news amused the guests.'

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Write a sentence about a 'Stimmungsaufheller'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Use 'kaum zu heitern' in a sentence.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Describe a face brightening up.

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正解! おしい! 正解:
writing

Use 'heiter weiter' in a dialogue.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Write about the importance of 'Heiterkeit'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Translate: 'Cheer up!' (Imperative)

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
speaking

Say: 'I want to cheer you up.'

Read this aloud:

正解! おしい! 正解:
speaking

Pronounce 'Heiterkeit' correctly.

Read this aloud:

正解! おしい! 正解:
speaking

Ask a friend: 'Can I cheer you up?'

Read this aloud:

正解! おしい! 正解:
speaking

Describe a sunny day using 'heiter'.

Read this aloud:

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speaking

Use 'erheitern' in a sentence about a comedian.

Read this aloud:

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speaking

Say: 'The weather is clearing up.'

Read this aloud:

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speaking

Explain the idiom 'aus heiterem Himmel' in German.

Read this aloud:

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speaking

Use 'aufgeheitert' in a sentence about yesterday.

Read this aloud:

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speaking

Say 'fair to cloudy' as a meteorologist.

Read this aloud:

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speaking

Tell someone to 'keep going cheerfully'.

Read this aloud:

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speaking

Pronounce 'aufzuheitern' correctly.

Read this aloud:

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speaking

Use 'Stimmungsaufheller' in a sentence about coffee.

Read this aloud:

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speaking

Say: 'Nothing could cheer him up.'

Read this aloud:

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speaking

Describe your mood as 'cheerful'.

Read this aloud:

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speaking

Ask: 'What cheers you up?'

Read this aloud:

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speaking

Say: 'His face brightened up.'

Read this aloud:

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speaking

Use 'erheitert' as an adjective.

Read this aloud:

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speaking

Explain the difference between 'aufheitern' and 'erheitern'.

Read this aloud:

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speaking

Say: 'It will clear up from the west.'

Read this aloud:

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speaking

Use 'Aufheiterung' in a sentence about a gift.

Read this aloud:

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listening

Listen to: 'Morgen wird es heiter bis wolkig.' What is the weather?

正解! おしい! 正解:
正解! おしい! 正解:
listening

Listen to: 'Du hast mich wirklich aufgeheitert.' Is the speaker happy or sad now?

正解! おしい! 正解:
正解! おしい! 正解:
listening

Listen to: 'Die Nachricht erheiterte die Gäste.' Were the guests bored?

正解! おしい! 正解:
正解! おしい! 正解:
listening

Listen to: 'Es heitert auf.' What is happening to the sky?

正解! おしい! 正解:
正解! おしい! 正解:
listening

Listen to: 'Das kam aus heiterem Himmel.' Was it expected?

正解! おしい! 正解:
正解! おしい! 正解:
listening

Listen to: 'Ich brauche eine Aufheiterung.' What does the person want?

正解! おしい! 正解:
正解! おしい! 正解:
listening

Listen to: 'Seine Miene heiterte sich.' Did the person start crying?

正解! おしい! 正解:
正解! おしい! 正解:
listening

Listen to: 'Heiter weiter!' Is the speaker giving up?

正解! おしい! 正解:
正解! おしい! 正解:
listening

Listen to: 'Ein Stimmungsaufheller ist nötig.' What is needed?

正解! おしい! 正解:
正解! おしい! 正解:
listening

Listen to: 'Die Komödie war sehr erheiternd.' Did they like the movie?

正解! おしい! 正解:
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listening

Listen to: 'Nichts konnte ihn heitern.' Was he easy to cheer up?

正解! おしい! 正解:
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listening

Listen to: 'Es ist schwer, sie aufzuheitern.' Is she a happy person right now?

正解! おしい! 正解:
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listening

Listen to: 'Vom Westen her heitert es auf.' Where is the clear sky coming from?

正解! おしい! 正解:
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listening

Listen to: 'Die Heiterkeit des Abends.' What was the mood of the evening?

正解! おしい! 正解:
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listening

Listen to: 'Wir heitern uns gemeinsam auf.' Are they alone?

正解! おしい! 正解:
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error correction

Ich heitere dich.

正解! おしい! 正解: Ich heitere dich auf.
error correction

Er hat mich geerheitert.

正解! おしい! 正解: Er hat mich erheitert.
error correction

Der Himmel heitert auf.

正解! おしい! 正解: Der Himmel heitert sich auf.
error correction

Ich habe ihn aufheitert.

正解! おしい! 正解: Ich habe ihn aufgeheitert.
error correction

Es ist schwer ihn zu aufheitern.

正解! おしい! 正解: Es ist schwer ihn aufzuheitern.
error correction

Die Sonne macht mich heitere.

正解! おしい! 正解: Die Sonne macht mich heiter.
error correction

Aus schönem Himmel.

正解! おしい! 正解: Aus heiterem Himmel.
error correction

Das Film erheitert uns.

正解! おしい! 正解: Der Film erheitert uns.
error correction

Wir heitern uns auf dem Wetter.

正解! おしい! 正解: Das Wetter heitert sich auf.
error correction

Gute Aufheitung!

正解! おしい! 正解: Gute Aufheiterung!

/ 200 correct

Perfect score!

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