At the A1 level, you can think of '澄んだ' (sunda) as a special way to say 'clear' for things in nature. It is most commonly used with 'water' (水 - mizu) and 'air' (空気 - kuuki). Even if you don't use it yourself yet, you will hear it in songs or see it in pictures of beautiful Japanese landscapes. Just remember that it is like saying 'very clean and clear.' It is different from 'kirei' (pretty) because it specifically means you can see through it or it feels fresh. For now, try to remember the phrase '澄んだ空気' (sunda kuuki), which means 'clear air.' This is a very common expression in Japan when people go to the mountains or the countryside. You might also hear it in simple anime when a character has 'clear eyes' (澄んだ目 - sunda me), meaning they are a good person. Don't worry about the grammar of the verb yet; just treat 'sunda' as a single word that describes something pure and beautiful.
At the A2 level, you should start to recognize that '澄んだ' (sunda) is actually the past form of the verb '澄む' (sumu), which means 'to become clear.' However, it is used as an adjective to describe things that are already clear. You will use it to describe the sky (空 - sora), the moon (月 - tsuki), and voices (声 - koe). For example, '澄んだ声' (sunda koe) is a 'clear voice.' This word is very useful when you want to describe a beautiful day or a pleasant sound. It is more specific than 'kirei.' If you say 'kirei na sora,' it just means a pretty sky. If you say 'sunda sora,' it means the sky is clear and blue without any clouds or smog. You should also be careful not to confuse it with '住んだ' (sunda), which means 'lived.' They sound similar, but the context is very different! Practice using it with nature words to make your Japanese sound more descriptive and natural.
At the B1 level, you are expected to understand the nuance of '澄んだ' (sunda) compared to other similar words like '透明な' (toumei na - transparent) and '清らかな' (kiyorakana - pure). 'Sunda' implies a process of settling—like how water becomes clear after the sand sinks to the bottom. This is why it is used for the air, the sky, and human character. You should be able to use it in more abstract ways, such as describing someone's '澄んだ心' (sunda kokoro - clear/pure heart) or '澄んだ瞳' (sunda hitomi - clear eyes). In these cases, it suggests honesty and a lack of hidden motives. You will also encounter the verb form '澄んでいる' (sunde iru) to describe a current state, like '水が澄んでいる' (The water is clear). At this level, you should start using 'sunda' in your writing to describe atmospheres or people's personalities, as it adds a level of emotional depth that simpler adjectives like 'ii' or 'kirei' lack.
At the B2 level, you should master the various idiomatic and compound uses of '澄んだ' (sunda). You will encounter terms like '澄み渡る' (sumiwataru - to clear up completely) and '澄まし顔' (sumashigao - a composed/unmoved face). You should also understand its cultural significance in Japanese aesthetics, where clarity and purity are highly valued. For instance, in a literary text, '澄んだ' might be used to set a specific mood of solitude or spiritual awakening. You should be able to distinguish between 'sunda' (clarity of a medium) and 'saikou' (clarity of light/brightness). Furthermore, you should be comfortable using 'sunda' in formal contexts, such as describing the '澄んだ音色' (pure tone) of a classical instrument. Your ability to use this word correctly in both physical and metaphorical contexts will demonstrate a deeper grasp of Japanese sensory vocabulary and its connection to the concept of 'purity.'
At the C1 level, you should appreciate the poetic and historical weight of '澄んだ' (sunda). It is a word that appears in classical literature and waka poetry, often symbolizing the clarity of the moon or the purity of one's devotion. You should be able to analyze how 'sunda' is used in modern literature to create atmosphere or to characterize individuals through sensory description. For example, an author might describe a character's voice as '澄んだ' to contrast with a '濁った' (nigotta - muddy/corrupt) environment. You should also be aware of technical nuances, such as its use in describing the clarity of sake (seishu) or the 'settling' of a situation. At this level, you should be able to use 'sunda' and its related forms (like 'sumasu' - to make clear/filter) in complex discussions about art, philosophy, or environmental science, choosing it over 'toumei' or 'pure' to convey a specific aesthetic quality of 'settled purity.'
At the C2 level, your understanding of '澄んだ' (sunda) should be indistinguishable from that of a highly educated native speaker. You should be able to navigate the finest nuances between 'sunda,' 'seiretsu,' 'kiyora,' and 'meiryou.' You understand that 'sunda' carries a specific 'stillness' (shizu-ke) that other words for clarity do not. You can use it to describe the psychological state of 'meikyou shisui' (a mind like a clear mirror and still water) in discussions of Zen or martial arts. You are also sensitive to the phonological beauty of the word and how its use in prose affects rhythm and tone. Whether you are translating classical texts or engaging in high-level academic discourse, you use 'sunda' to evoke the traditional Japanese appreciation for the essence of things—the clarity that remains when all that is unnecessary has been removed. You can also identify and explain the subtle differences in meaning when 'sumu' is used in various historical periods.

澄んだ in 30 Sekunden

  • Used for natural clarity like air, water, and sky.
  • Describes pure sounds and high-quality voices.
  • Metaphorically refers to honest eyes and a pure heart.
  • Derived from the verb 'sumu' (to become clear).

The Japanese word 澄んだ (sunda) is a beautiful and evocative adjective that describes a state of clarity, purity, and transparency. While it is technically the past or perfective form of the verb 澄む (sumu), which means 'to become clear' or 'to settle,' in daily Japanese, it functions almost exclusively as a pre-nominal adjective to describe things that are free from impurities, noise, or cloudiness. When you use sunda, you aren't just saying something is 'clear' in a scientific sense; you are often imparting a sense of refreshing beauty and tranquility. It is a word deeply rooted in the Japanese aesthetic of purity (seijaku) and the appreciation of nature's untouched states.

Physical Clarity
Used to describe water in a mountain stream or the air after a rainstorm. It implies that all sediment or dust has settled, leaving only the essence of the medium.
Auditory Purity
Applied to sounds, such as a flute's note or a person's singing voice, indicating a lack of raspiness or distortion. It sounds 'crystal clear' to the ear.
Metaphorical Purity
Often used to describe a person's eyes (瞳 - hitomi) or heart (心 - kokoro), suggesting honesty, innocence, or a lack of deceitful intent.

In Japanese culture, the concept of sunda is often contrasted with 濁った (nigotta), which means muddy or cloudy. This duality is central to Shinto beliefs regarding kegare (impurity) and harae (purification). When a Japanese person describes the sky as sunda sora, they are expressing a feeling of spiritual refreshment, not just a weather observation. You will find this word frequently in literature, song lyrics, and travel brochures describing the pristine nature of the Japanese countryside.

山の上では、空気がとても澄んだように感じます。(At the top of the mountain, the air feels very clear.)

Historically, the verb sumu appears in the Man'yoshu (the oldest collection of Japanese poetry), where it was used to describe the moon and water. This long history has imbued the word with a sense of classical elegance. Unlike the more modern and technical term 透明 (toumei), which simply means 'transparent' (like glass), sunda carries an emotional weight of serenity and life. It is the difference between a clear plastic sheet and the clear water of a sacred spring.

彼女の澄んだ瞳に見つめられると、嘘はつけない。(When stared at by her clear eyes, I cannot tell a lie.)

Furthermore, the word is often used in compound expressions and poetic descriptions. For instance, 澄み渡る (sumiwataru) means 'to clear up completely' (referring to the sky), while 澄まし顔 (sumashigao) refers to a straight, composed face. Understanding sunda is key to grasping the Japanese appreciation for the 'uncluttered'—whether that be in nature, sound, or human character.

Using 澄んだ (sunda) correctly requires an understanding of its grammatical role as a modifier and its specific semantic range. Since it is the past form of the verb sumu, it is most commonly placed directly before a noun to describe a state. However, it can also be used at the end of a sentence when modified by auxiliary verbs or in specific poetic structures. Let's look at the primary categories of its usage.

Category 1: Environmental Description
This is the most frequent use. It describes air (空気), the sky (空), or water (水). It emphasizes the absence of smog, clouds, or dirt.
Category 2: Sensory Perception
This describes sounds (音), voices (声), or musical notes (音色). It suggests a high-quality, resonant, and pure sound that is pleasing to the ear.
Category 3: Human Characteristics
This describes eyes (瞳/目) or the heart/spirit (心). It implies a sense of innocence, sincerity, or intellectual clarity.

冬の朝の澄んだ空気は、身が引き締まる思いがする。(The clear air of a winter morning makes me feel refreshed and sharp.)

One important grammatical nuance is the difference between 澄んでいる (sunde iru) and 澄んだ (sunda). Sunde iru is the continuous state (it is clear), while sunda is the attributive form (the clear...). When you want to say 'The water is clear,' you would say 水が澄んでいる (Mizu ga sunde iru). When you want to say 'The clear water,' you would say 澄んだ水 (Sunda mizu). While both are common, sunda feels slightly more literary and descriptive.

彼は澄んだ声で歌い始めた。(He began to sing with a clear voice.)

In more advanced contexts, you might see sunda used to describe a mental state. A 澄んだ心 (sunda kokoro) is a mind free of distraction or malicious intent. This is a common trope in martial arts or meditation contexts, where 'clearing the mind' is the ultimate goal. The word evokes a sense of stillness, like the surface of a pond that has finally stopped rippling, allowing you to see all the way to the bottom.

秋の夜空には、澄んだ月が輝いている。(In the autumn night sky, a clear moon is shining.)

You will encounter 澄んだ (sunda) across a wide variety of Japanese media, ranging from everyday conversations to high-brow literature. Its usage is particularly concentrated in contexts where atmosphere and emotion are being conveyed. Here are the most common places you will hear or see this word.

Nature Documentaries and Travel Shows
Narrators often use sunda to describe the pristine environments of Hokkaido or the clear waters of Okinawa. It emphasizes the 'unspoiled' nature of the location.
Anime and Manga
Character descriptions frequently use sunda hitomi (clear eyes) to signal that a character is protagonist-coded, honest, or possesses some supernatural purity. It is a visual and linguistic shorthand for 'goodness.'
Lyrics and Poetry
J-Pop lyrics are full of sunda. Whether it's a 'clear sky' representing a new beginning or a 'clear voice' echoing through the night, the word adds a layer of romanticism and clarity to the imagery.

「この湖の水は本当に澄んでいますね。」(The water in this lake is truly clear, isn't it?)

In daily life, Japanese people use sunda when they are genuinely impressed by the quality of the environment. If you go hiking and the air is crisp, saying 「空気が澄んでいますね」(Kuuki ga sunde imasu ne) is a perfect way to bond with your companions. It is more sophisticated than simply saying 'the weather is good.' It acknowledges the specific sensory quality of the air.

You might also hear it in a professional context, specifically in the arts. A music teacher might tell a student to aim for a 澄んだ音色 (sunda neiro), meaning a tone that is pure and lacks any 'fuzziness' or technical errors. In this sense, it is a goal for mastery—reaching a state where the medium (sound) is perfectly clear.

都会を離れて、澄んだ星空を眺めたい。(I want to leave the city and gaze at the clear, starry sky.)

Finally, in literature, sunda is used to set a mood of stillness. Authors like Natsume Soseki or Haruki Murakami use the word to describe moments of quiet realization or the physical environment of a character who is seeking truth. It creates a 'quiet' atmosphere in the reader's mind.

While 澄んだ (sunda) is a versatile word, English speakers often make mistakes by over-extending its meaning or confusing it with similar-sounding or similar-meaning words. Understanding these nuances will help you sound more like a native speaker.

Mistake 1: Using it for Glass or Objects
You cannot say sunda mado (clear window). Sunda implies a liquid or gas that has settled or a sound/heart that is pure. For inanimate objects like glass, plastic, or diamonds, use 透明な (toumei na).
Mistake 2: Confusing it with 'Bright' (Akarui)
English speakers might say 'clear' when they mean 'sunny' or 'bright.' If the sun is shining brightly, use 明るい (akarui) or 晴れた (hareta). Sunda specifically refers to the quality of the medium (air/sky), not the amount of light.
Mistake 3: Confusing it with 'Clean' (Kirei)
While something sunda is often kirei, they are not interchangeable. Kirei can mean beautiful or tidy (like a clean room). Sunda cannot be used to describe a tidy room; it only describes the clarity of a substance or sound.

❌ このメガネは澄んでいます
✅ このメガネは透明です / きれいです。
(Mistake: Using 'sunda' for glasses.)

Another common error is related to the verb form. Because sunda looks like a past tense verb, learners sometimes think it means 'it was clear but isn't anymore.' However, in Japanese, the past form of certain verbs (state-change verbs) is used to describe the *current* state resulting from that change. So, 澄んだ空 (sunda sora) means 'the sky that has become clear' (and thus is currently clear). If you want to say 'the sky was clear yesterday,' you would say 昨日は空が澄んでいた (Kinou wa sora ga sunde ita).

Lastly, be careful with the word 住んだ (sunda). While spelled the same in romaji, it comes from the verb sumu (to live/reside) and uses a different kanji (住). In spoken Japanese, the pitch accent is different, but in writing, the kanji 澄 clearly distinguishes 'clear' from 'lived.' Always check your kanji when writing!

❌ 東京に澄んでいます
✅ 東京に住んでいます
(Mistake: Confusing 'to live' with 'to be clear'.)

To truly master the nuance of 澄んだ (sunda), it is helpful to compare it with other Japanese words that translate to 'clear,' 'pure,' or 'clean.' Each of these has a specific domain where it is most appropriate.

透明な (Toumei na)
This is a scientific or objective term for transparency. It means light can pass through it. Use this for glass, plastic, or a 'transparent' organization. It lacks the poetic or emotional depth of sunda.
清らかな (Kiyorakana)
This means 'pure' or 'holy.' It is often used in religious or highly formal contexts. While sunda describes physical clarity that feels pure, kiyorakana describes a moral or spiritual purity that is almost sacred.
さわやかな (Sawayakana)
This means 'refreshing.' While clear air (sunda kuuki) is often refreshing (sawayaka), sawayaka focuses on the feeling it gives you, whereas sunda focuses on the visual/physical state of the air itself.
晴天 (Seiten)
A noun meaning 'clear weather' or 'blue sky.' This is a factual description of the weather. Sunda sora is more about the quality of the blue and the absence of haze.

Comparison:
1. 澄んだ水 (Sunda mizu): Water that looks pure and settled.
2. 透明な水 (Toumei na mizu): Water that you can see through (objective).
3. 清らかな水 (Kiyorakana mizu): Holy or spiritually pure water.

When choosing between these, consider your intent. If you want to describe the beauty of nature or the sincerity of a person, sunda is usually the best choice. If you are describing a product (like a clear phone case), toumei is the only option. If you are describing a refreshing breeze, sawayaka is better.

In literary Japanese, you might also encounter 清冽な (seiretsu na), which means 'crystal clear and cold,' usually describing mountain springs. This is a more advanced version of sunda that adds the element of temperature. Similarly, 明鏡止水 (meikyou shisui) is a four-character idiom (yojijukugo) meaning 'a mind as clear as a polished mirror and still water,' which uses the concept of sunda to describe perfect mental clarity.

How Formal Is It?

Wusstest du?

The word 'sumu' (to become clear) is phonetically identical to 'sumu' (to live) and 'sumu' (to finish), leading to many puns in classical literature.

Aussprachehilfe

UK /sɯn.da/
US /sʊn.dɑ/
Japanese has pitch accent rather than stress. In standard Japanese (Tokyo), 'sunda' has a 'Low-High-Low' pattern (Atamadaka or Heiban depending on context, but usually the 'su' is lower than 'n').
Reimt sich auf
Funda (stepped) Tunda (piled up) Kunda (scooped) Shinda (died) Yonda (read) Nonda (drank) Anda (knitted) Kanda (bit)
Häufige Fehler
  • Pronouncing 'su' like the English 'su' in 'super' (too long).
  • Confusing the pitch with 'sunda' (lived), which is often 'Low-High-Low'.
  • Nasalizing the 'n' too much like an English 'ng'.
  • Making the 'da' sound too explosive.
  • Using an English 'r' sound if they misread it as 'surunda'.

Schwierigkeitsgrad

Lesen 3/5

The kanji is N2 level, but the word is common in speech and literature.

Schreiben 4/5

The kanji 澄 is somewhat complex to write correctly from memory.

Sprechen 2/5

Easy to pronounce, but must be careful with pitch accent to avoid 'lived'.

Hören 2/5

Commonly heard in nature-related contexts and songs.

Was du als Nächstes lernen solltest

Voraussetzungen

水 (Mizu) 空 (Sora) きれい (Kirei) 空気 (Kuuki) 見える (Mieru)

Als Nächstes lernen

透明な (Toumei na) 清らかな (Kiyorakana) 濁る (Nigoru) 輝く (Kagayaku) 反射 (Hansha)

Fortgeschritten

明鏡止水 (Meikyou shisui) 清冽 (Seiretsu) 境地 (Kyouchi) 洗練 (Senren)

Wichtige Grammatik

Past form as a state-descriptive adjective

澄んだ空 (The sky that is clear / The clear sky)

Te-form for describing current state

空が澄んでいる (The sky is clear)

Attributive vs. Predicative usage

澄んだ水 (Attributive) vs. 水が澄んでいる (Predicative)

Verb compounds with ~wataru

空が澄み渡る (The sky clears up across the whole expanse)

Verb compounds with ~kiru

澄み切った水 (Perfectly clear water)

Beispiele nach Niveau

1

澄んだ水ですね。

It's clear water, isn't it?

Sunda modifies the noun mizu (water).

2

澄んだ空が見えます。

I can see a clear sky.

Sunda describes the state of the sky.

3

ここは空気が澄んでいます。

The air is clear here.

Sunde-imasu is the present state form.

4

澄んだ目をした猫です。

It's a cat with clear eyes.

Sunda describes the cat's eyes.

5

山の上は澄んだ空気です。

On top of the mountain, the air is clear.

Simple noun modification.

6

澄んだ青い海です。

It's a clear blue sea.

Sunda and aoi both modify umi (sea).

7

澄んだ声で歌います。

Sing with a clear voice.

Sunda describes the quality of the voice.

8

秋の澄んだ月です。

It's the clear moon of autumn.

Sunda describes the moon.

1

雨の後は空気が澄んでいて気持ちいいです。

The air is clear and feels good after the rain.

Sunde-ite is the te-form, connecting two states.

2

彼女はとても澄んだ瞳をしています。

She has very clear eyes.

Hitomi is a more poetic word for eyes (me).

3

澄んだ川で魚が泳いでいます。

Fish are swimming in the clear river.

Sunda modifies kawa (river).

4

冬の朝は、いつもより空が澄んで見えます。

In winter mornings, the sky looks clearer than usual.

Sunde-miemasu means 'looks clear'.

5

澄んだ音色のベルが鳴りました。

A bell with a clear tone rang.

Neiro means 'tone' or 'sound color'.

6

澄んだ心で毎日を過ごしたいです。

I want to spend every day with a clear heart.

Sunda kokoro is a metaphorical use for 'pure heart'.

7

このお酒は澄んだ色をしていますね。

This sake has a clear color, doesn't it?

Used to describe the visual clarity of a liquid.

8

遠くの山まで澄んで見えます。

You can see clearly all the way to the distant mountains.

Sunde-miemasu indicates high visibility.

1

澄んだ空気の中で深呼吸をすると、疲れが取れます。

Taking a deep breath in the clear air relieves fatigue.

Sunda kuuki no naka de (Inside the clear air).

2

彼の澄んだ声は、聴く人の心を癒やします。

His clear voice heals the hearts of those who listen.

Metaphorical use of 'healing' with 'clear voice'.

3

都会ではなかなか澄んだ星空を見ることができません。

In the city, it's hard to see a clear, starry sky.

Sunda hoshizora is a common phrase for a starry sky.

4

澄んだ泉のほとりで、しばらく休みました。

I rested for a while by the side of a clear spring.

Izumi (spring) is a natural noun often paired with sunda.

5

子供のような澄んだ瞳を失いたくないものです。

I don't want to lose those clear eyes like a child's.

Kodomo no you na (like a child) modifies sunda hitomi.

6

フルートの澄んだ音が部屋中に響き渡った。

The clear sound of the flute echoed throughout the room.

Hibiki-wataru means 'to echo/resound throughout'.

7

澄んだ秋の空に、赤とんぼが飛んでいる。

Red dragonflies are flying in the clear autumn sky.

Sunda aki no sora (Clear autumn sky).

8

その少年は、澄んだ心で真実を語った。

The boy told the truth with a clear heart.

Implies sincerity and lack of corruption.

1

高地の澄んだ空気は、天体観測に最適です。

The clear air of high altitudes is ideal for astronomical observation.

Saiteki means 'optimal' or 'best suited'.

2

彼女の澄んだ歌声は、会場全体を魅了した。

Her clear singing voice captivated the entire venue.

Miryou-shita means 'captivated' or 'charmed'.

3

澄んだ湖面に、周囲の山々が鏡のように映っている。

The surrounding mountains are reflected like a mirror on the clear lake surface.

Kagami no you ni (like a mirror).

4

雑念を払い、澄んだ心で試合に臨む。

I will clear my mind of distractions and face the match with a clear heart.

Zatsunen o harau (to brush away distractions).

5

このバイオリンは、驚くほど澄んだ音色を奏でる。

This violin produces an amazingly clear tone.

Kanaderu is the verb for playing a musical instrument.

6

冬の夜、澄み渡った空にオリオン座が輝いている。

On a winter night, Orion shines in the completely clear sky.

Sumi-watatta is an intensified form of sunda.

7

彼の澄んだ瞳には、一点の曇りもなかった。

In his clear eyes, there wasn't a single speck of cloudiness (deceit).

Itten no kumori mo nai (Not even a speck of cloudiness).

8

澄んだ湧き水で淹れたお茶は、格別の味がする。

Tea brewed with clear spring water has an exceptional taste.

Wakimizu (spring water) and kakubetsu (exceptional).

1

その詩人は、澄んだ言葉を用いて自然の美しさを謳い上げた。

The poet praised the beauty of nature using clear, pure language.

Sunda kotoba refers to language that is simple and direct.

2

朝露に濡れた草花が、澄んだ光を浴びて輝いている。

The flowers and grasses wet with morning dew are shining in the clear light.

Sunda hikari (clear light) describes the crisp morning sun.

3

厳しい修行の末、彼は澄んだ境地に達した。

After rigorous training, he reached a clear state of mind/spiritual level.

Kyouchi refers to a state of mind or spiritual realm.

4

彼女の澄んだ知性は、複雑な問題を一瞬で解き明かした。

Her clear intellect solved the complex problem in an instant.

Metaphorical use for sharp, unbiased intellect.

5

澄んだ空気感を持つ彼の演技は、観客の心に深く残った。

His acting, which had a sense of clarity/purity, left a deep impression on the audience.

Kuukikan (atmosphere/vibe) being described as sunda.

6

北国の冬の夜、澄み切った大気にオーロラが舞う。

In the winter nights of the north, the aurora dances in the crystal-clear atmosphere.

Sumi-kitta is a very strong form of clarity.

7

その建築家は、澄んだ空間美を追求し続けている。

The architect continues to pursue the beauty of clear, uncluttered space.

Kuukan-bi (spatial beauty).

8

澄んだ笛の音が、静寂な森の奥へと吸い込まれていった。

The clear sound of the flute was absorbed into the depths of the silent forest.

Suikomareru (to be sucked in/absorbed).

1

明鏡止水の如く、澄んだ心持ちで最期の時を迎えた。

Like a clear mirror and still water, he faced his final moments with a clear heart.

Meikyou shisui is a high-level idiom for mental clarity.

2

その古筆には、澄んだ墨の色が今なお鮮やかに残っている。

In that ancient calligraphy, the clear color of the ink still remains vividly today.

Sunda sumi no iro refers to high-quality, non-muddy ink.

3

作者の澄んだ感性が、日常の何気ない風景を芸術へと昇華させている。

The author's clear sensitivity sublimates ordinary everyday scenes into art.

Shouka-saseru (to sublimate/elevate).

4

澄んだ静寂が支配する堂内で、一筋の光が仏像を照らしていた。

Inside the hall dominated by a clear silence, a single ray of light illuminated the Buddha statue.

Sunda seijaku (clear silence) is a poetic oxymoron.

5

一分の濁りもない、澄み渡った論理展開に圧倒された。

I was overwhelmed by the completely clear logical progression, without a single bit of muddiness.

Ichibu no nigori mo nai (Without a fraction of muddiness).

6

その聖域に足を踏み入れると、澄んだ霊気に身が洗われるようだった。

Stepping into that sanctuary, it felt as if my body was being washed by the clear spiritual aura.

Reiki (spiritual aura/energy).

7

澄んだ水鏡のごとき湖に、己の醜い心が映し出されるようだった。

In the lake, like a clear water-mirror, it felt as if my own ugly heart was being reflected.

Mizukagami (water mirror) is a classic literary term.

8

万葉の昔から、日本人は澄んだ月を愛で、歌に託してきた。

Since the ancient times of the Man'yoshu, Japanese people have admired the clear moon and expressed it in poems.

Aederu (to admire/appreciate beauty).

Häufige Kollokationen

澄んだ空気
澄んだ瞳
澄んだ声
澄んだ水
澄んだ空
澄んだ音色
澄んだ心
澄んだ色
澄んだ月
澄んだ泉

Häufige Phrasen

空気が澄んでいる

— The air is clear. Often said in winter or in nature.

今日は空気が澄んでいて、富士山がよく見える。

目が澄んでいる

— To have clear/honest eyes. Implies a person is sincere.

彼の目はいつも澄んでいる。

澄んだ響き

— A clear resonance. Used for high-quality audio or bells.

教会の鐘が澄んだ響きを立てた。

澄んだ液体

— A clear liquid. Used in science or cooking.

試験管の中に澄んだ液体が入っている。

澄んだ夜空

— A clear night sky. Perfect for stargazing.

澄んだ夜空に流れ星が見えた。

澄んだまなざし

— A clear gaze. Similar to 'clear eyes' but more focused on the look.

彼女の澄んだまなざしに圧倒された。

澄んだ水面

— A clear water surface. Implies a mirror-like quality.

澄んだ水面に月が映っている。

澄んだスープ

— A clear soup (like consommé or clear dashi).

このラーメンは澄んだスープが特徴だ。

澄んだ精神

— A clear spirit/mind. Used in martial arts or philosophy.

澄んだ精神で困難に立ち向かう。

澄んだ青

— A clear blue color. Describes the sky or gems.

澄んだ青が印象的な絵画だ。

Wird oft verwechselt mit

澄んだ vs 住んだ (Sunda)

Past tense of 'to live.' Written with 住. Different pitch accent.

澄んだ vs 済んだ (Sunda)

Past tense of 'to finish/be over.' Written with 済. Used for tasks or events.

澄んだ vs 刷った (Sutta)

Past tense of 'to print' or 'to rub.' Sounds slightly similar to beginners.

Redewendungen & Ausdrücke

"明鏡止水"

— A mind as clear as a mirror and still as water. Total mental clarity.

彼は明鏡止水の心境で試合に臨んだ。

Literary/Formal
"澄ました顔"

— A straight face; a composed or indifferent look. Sometimes implies acting cool.

彼は失敗したのに、澄ました顔をしている。

Neutral
"耳を澄ます"

— To strain one's ears; to listen carefully to catch a faint sound.

遠くの音を聞こうと、耳を澄ました。

Neutral
"心を澄ます"

— To clear one's mind; to achieve a state of inner peace and focus.

静かな部屋で心を澄まして考えた。

Literary
"澄み渡る"

— To clear up completely (usually the sky).

台風が去って、空が澄み渡った。

Neutral
"澄み切る"

— To be perfectly clear; to have no impurities whatsoever.

澄み切った大空が広がっている。

Neutral
"澄まし汁"

— A clear Japanese soup made with dashi and soy sauce.

お正月に澄まし汁を作った。

Neutral
"目を澄ます"

— To look carefully; to focus one's eyes to see something clearly.

暗闇の中で目を澄まして道を探した。

Neutral
"澄まし込む"

— To look very composed or affectedly cool.

彼女は澄まし込んでピアノを弾いている。

Rare/Old-fashioned
"澄んだ流れ"

— A clear flow. Used for streams or metaphorically for a clear progression.

川の澄んだ流れを見ていると落ち着く。

Poetic

Leicht verwechselbar

澄んだ vs 透明な (Toumei na)

Both translate to 'clear'.

Toumei is for physical transparency (glass, plastic). Sunda is for settled purity (air, water, heart).

透明なコップ (Transparent cup) vs 澄んだ水 (Clear water).

澄んだ vs きれいな (Kirei na)

Both describe something positive and visually pleasing.

Kirei is broad (pretty, clean, tidy). Sunda is specific to clarity and lack of turbidity.

きれいな部屋 (Clean room) - You cannot use 'sunda' here.

澄んだ vs 明るい (Akarui)

Clear weather is often bright.

Akarui refers to the amount of light. Sunda refers to the lack of haze/smog.

明るい部屋 (Bright room) vs 澄んだ空 (Clear sky).

澄んだ vs 清らかな (Kiyorakana)

Both mean 'pure'.

Kiyorakana is more formal and spiritual. Sunda is more sensory and natural.

清らかなお祈り (A pure prayer) vs 澄んだ声 (A clear voice).

澄んだ vs さわやかな (Sawayakana)

Clear air is often refreshing.

Sawayakana focuses on the feeling of refreshment. Sunda focuses on the visual clarity.

さわやかな風 (Refreshing breeze) vs 澄んだ空気 (Clear air).

Satzmuster

A1

[Noun] が 澄んでいます。

水が澄んでいます。

A2

澄んだ [Noun] ですね。

澄んだ空ですね。

B1

澄んだ [Noun] を [Verb]。

澄んだ空気を吸う。

B1

[Noun] は 澄んだ 瞳を している。

彼は澄んだ瞳をしている。

B2

[Noun] は 澄み渡っている。

夜空は澄み渡っている。

B2

澄んだ [Noun] が 響く。

澄んだ音色が響く。

C1

澄み切った [Noun] の 中で...

澄み切った大気の中で星を見る。

C2

澄んだ [Noun] の ごとき [Noun]。

澄んだ水鏡のごとき湖。

Wortfamilie

Substantive

澄み (sumi) - Clarity/purity
清澄 (seichou) - Serene clarity
澄まし (sumashi) - Composure/clear soup

Verben

澄む (sumu) - To become clear (Intransitive)
澄ます (sumasu) - To make clear/filter/act cool (Transitive)
澄み渡る (sumiwataru) - To clear up completely

Adjektive

澄んだ (sunda) - Clear (past/attributive)
澄み切った (sumikitta) - Crystal clear

Verwandt

透明 (toumei)
清らか (kiyora)
純粋 (junsuui)
清潔 (seiketsu)
綺麗 (kirei)

So verwendest du es

frequency

Common in descriptive language, literature, and songs; moderate in daily casual conversation.

Häufige Fehler
  • Using 'sunda' for glass windows. 透明な窓 (Toumei na mado)

    Sunda is for substances like air/water or senses, not hard objects like glass.

  • Using 'sunda' to mean 'finished'. 済んだ (Sunda - written with 済)

    These are homophones. 'Sunda' (clear) must use the 澄 kanji.

  • Confusing 'sunda' (clear) with 'akarui' (bright). 明るい部屋 (Akarui heya)

    A room can be bright but not 'sunda.' Sunda refers to the quality of the air or water.

  • Using 'sunda' for a clean, tidy room. きれいな部屋 (Kirei na heya)

    Sunda is not about tidiness; it's about transparency and purity of a medium.

  • Saying 'Tokyo ni sunde-imasu' with the 澄 kanji. 東京に住んでいます (住 - to live)

    This is a common kanji error. Always use 住 for living and 澄 for clarity.

Tipps

Think of Water

The best way to remember 'sunda' is to think of a mountain stream. If the water is so clear you can see the pebbles, it is 'sunda'.

Past Tense State

Remember that 'sunda' is the past form but describes a current state. It's like saying 'it has become clear, so it is clear now'.

Seasonal Use

Use 'sunda' more often in autumn and winter contexts. Japanese people associate these seasons with clarity.

Voice Compliments

If you want to compliment a singer's voice as being pure and beautiful, say 'Sunda koe desu ne'.

Water Radical

Notice the three dots on the left (氵). They represent water, which is the primary thing 'sunda' describes.

Beyond Transparent

Don't just use it for 'see-through.' Use it when something feels 'pure' or 'refreshing'.

Listen Closely

Learn 'mimi o sumasu' (to listen carefully). It uses the same root and is very common.

Literary Flair

Using 'sunda' instead of 'kirei' in your essays will make your Japanese sound more advanced and descriptive.

No Glass!

Never use 'sunda' for windows or glasses. It sounds very strange to native speakers.

Total Clarity

Use 'sumiwataru' when the entire sky is blue and clear without a single cloud.

Einprägen

Eselsbrücke

Think of 'Sun' + 'Da'. When the SUN comes out, the sky is clear (DA!).

Visuelle Assoziation

Imagine a glass of muddy water where the mud sinks to the bottom, leaving crystal clear water on top. That top part is 'sunda'.

Word Web

Water Air Eyes Voice Heart Sky Moon Purity

Herausforderung

Try to find three things in your current environment that could be described as 'sunda'. Is the water in your glass sunda? Is the air sunda? Is your mind sunda?

Wortherkunft

Derived from the Old Japanese verb 'sumu.' The kanji 澄 consists of the water radical (氵) and the phonetic 'chou' (登), which suggests rising or settling.

Ursprüngliche Bedeutung: To settle; for sediment in water to sink to the bottom, leaving the top clear.

Japonic

Kultureller Kontext

No specific sensitivities, but using 'sunda' to describe a person's eyes or heart is a high compliment, implying they are untainted and honest.

English speakers often use 'clear' for glass, which Japanese doesn't do with 'sunda.' English also uses 'clear' for understanding, which Japanese expresses with 'wakaru' or 'meiryou.'

The Man'yoshu: Ancient poems describing the 'sunda' moon. Studio Ghibli: Frequently uses 'sunda' imagery in nature scenes to evoke nostalgia and purity. Japanese Sake: 'Seishu' (clear sake) is defined by its 'sunda' appearance compared to unfiltered varieties.

Im Alltag üben

Kontexte aus dem Alltag

Hiking or Nature Trip

  • 空気が澄んでいる
  • 澄んだ川
  • 澄んだ景色
  • 遠くまで澄んで見える

Music or Performance

  • 澄んだ声
  • 澄んだ音色
  • 澄んだ響き
  • 音を澄ませる

Describing People

  • 澄んだ瞳
  • 澄んだ心
  • 澄んだまなざし
  • 澄ました顔

Weather/Stargazing

  • 澄んだ夜空
  • 澄んだ月
  • 澄み渡る空
  • 澄み切った大気

Food and Drink

  • 澄んだスープ
  • 澄んだお酒
  • 澄まし汁
  • 澄んだ水

Gesprächseinstiege

"「今日は空が澄んでいて、遠くの山まで見えますね。」 (The sky is clear today, and you can see the distant mountains.)"

"「この辺りは空気が澄んでいて、気持ちがいいですね。」 (The air around here is clear and feels great.)"

"「彼女の澄んだ歌声、聴いたことがありますか?」 (Have you ever heard her clear singing voice?)"

"「どうすれば、あんなに澄んだ瞳でいられるんでしょうね。」 (I wonder how one can keep such clear eyes.)"

"「冬の夜は星が澄んで見えますが、寒くないですか?」 (The stars look clear on winter nights, but aren't you cold?)"

Tagebuch-Impulse

山に登って、澄んだ空気を吸った時の気持ちを書いてください。 (Write about how you felt breathing clear air on a mountain.)

最近、心が澄んだと感じた瞬間はいつですか? (When was a recent moment you felt your heart was clear?)

あなたが知っている「澄んだ声」の持ち主について説明してください。 (Describe someone you know who has a 'clear voice'.)

都会の空気と、田舎の澄んだ空気の違いについてどう思いますか? (What do you think about the difference between city air and clear country air?)

「澄んだ瞳」を持つ人は、どのような性格だと思いますか? (What kind of personality do you think a person with 'clear eyes' has?)

Häufig gestellte Fragen

10 Fragen

No, you should use 'toumei na' (透明な) for glass. 'Sunda' is used for things that are naturally clear or have become clear by settling, like water, air, or a voice.

Grammatically, it is the past form of the verb 'sumu' (澄む). However, it is used as a 'stative adjective' to describe a noun, meaning 'clear' or 'pure'.

'Sunda' is used before a noun (e.g., sunda mizu - clear water). 'Sunde iru' is used at the end of a sentence to describe a state (e.g., mizu ga sunde iru - the water is clear).

Usually, no. For a clear explanation, 'wakariyasui' (easy to understand) or 'meiryou' (clear/distinct) are better. 'Sunda' is for sensory or spiritual clarity.

Yes, 'sunda' almost always has a positive connotation of purity, beauty, and tranquility.

In writing, the kanji are different (澄 vs 住). In speaking, the context (water vs city) usually makes it obvious, and the pitch accent differs slightly.

It's rare in technical business contexts, but might be used in a speech to describe a 'clear vision' or 'pure intent' in a more poetic way.

Yes, it describes the clarity and 'sparkle' of the eyes, not the color itself. It implies the eyes look honest and bright.

Yes! Both come from the root 'sumu.' 'Sumimasen' literally means 'it doesn't end/clear,' implying that a simple apology isn't enough to clear the debt or feeling.

The most common opposite is 'nigotta' (濁った), which means muddy, cloudy, or impure.

Teste dich selbst 200 Fragen

writing

Write 'Clear water' in Japanese.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'The air is clear' using 'sunde-imasu'.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence about a 'clear voice'.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Describe a 'starry sky' using 'sunda'.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Use 'sunda kokoro' in a sentence about honesty.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'Clear sky'.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'Clear eyes'.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'The water in the river is clear'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'Listen carefully to the sound' using 'sumasu'.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'A mind as clear as a mirror' using 'meikyou shisui'.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'Clear air'.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'Clear moon'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'I want to see the clear sea'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'The sky cleared up completely'.

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

Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'She has a clear intellect'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'Clear blue sea'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'Clear tone'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'Deep breath in clear air'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'Clear soup'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write 'Clear silence'.

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

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear water' in Japanese.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'The air is clear' in Japanese.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Describe a singer's voice as 'clear'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Listen carefully to the sound'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'The sky cleared up completely'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear sky'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear eyes'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'The water is clear'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'A clear tone'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'A clear heart'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear moon'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear air'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Starry sky'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear soup'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear intellect'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Blue sea'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear sound'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear gaze'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Composed face'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Clear silence'.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda mizu'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Kuuki ga sunde iru'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda koe'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Mimi o sumasu'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sumi-wataru'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda sora'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda hitomi'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda hoshizora'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda neiro'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda kokoro'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda tsuki'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda kuuki'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda mizu'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sumashigao'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen and identify: 'Sunda seijaku'.

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:

/ 200 correct

Perfect score!

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