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むずかしい

A1 adjective #400 most common 9 min read

むずかしい

muzukashii Top 400

Practice it Examples Notes & Tips むずかしい in 30 Seconds

Explanation むずかしい in your Level:

At the A1 level, 'muzukashii' is one of the essential adjectives you learn to describe your learning experience. You will use it to talk about Japanese grammar, Kanji, or homework. The focus at this level is on the simple present and past affirmative forms: 'muzukashii desu' (it is difficult) and 'muzukashikatta desu' (it was difficult). You should be able to use it to describe nouns, such as 'muzukashii hon' (a difficult book). At this stage, you are learning that Japanese is 'muzukashii' but fun! You will also start to see how it contrasts with 'kantan' (easy) or 'yasashii' (easy/simple). The goal is to express basic opinions about tasks you encounter in your daily life as a student. You might also learn to use 'chotto' (a little) with it to say 'chotto muzukashii' (a little difficult), which is a very common phrase.

At the A2 level, you begin to master the negative and past-negative forms of 'muzukashii.' You should be comfortable saying 'muzukashikunai desu' (it is not difficult) and 'muzukashikunakatta desu' (it was not difficult). You will also start using 'muzukashii' in more complex sentence structures, such as using the particle 'no' to turn a verb into a noun: 'Kanji o kaku no wa muzukashii desu' (Writing Kanji is difficult). You will also learn to use 'muzukashii' with 'to omoimasu' (I think that...) to express your thoughts more naturally: 'Kono tesuto wa muzukashii to omoimasu.' This level also introduces the concept of using 'muzukashii' as a polite way to decline an invitation or request, although the full nuance of this social 'no' is still developing.

By the B1 level, you are expected to use 'muzukashii' in a variety of contexts, including describing abstract concepts and social situations. You will start to distinguish 'muzukashii' from its synonyms like 'taihen' (tough) and 'fukuzatsu' (complex). You will also learn the grammar pattern '~nikui,' which is attached to the stem of a verb to mean 'difficult to [verb],' such as 'yominikui' (difficult to read). While 'muzukashii' can be used separately ('yomu no wa muzukashii'), '~nikui' is more common for describing physical or inherent difficulty. You will also use 'muzukashii' in conditional sentences, like 'Muzukashikattara, tetsudaimasu yo' (If it's difficult, I will help you). Your understanding of the word's role in Japanese 'tatemae' (public face) grows, as you use it more frequently to navigate social interactions politely.

At the B2 level, you use 'muzukashii' to discuss more sophisticated topics like economics, politics, and psychology. You understand the nuance of 'muzukashii' when it describes a person's character (a 'difficult' person) or a 'difficult' facial expression (muzukashii kao). You are also familiar with formal synonyms like 'konnan' and 'nankai' and know when to use them in written reports versus spoken conversation. You can use 'muzukashii' in the adverbial form 'muzukashiku' to describe actions, such as 'muzukashiku kangaesugiru' (to overthink/think too complicatedly). At this level, you are fully aware of the 'soft rejection' power of 'muzukashii' in business and can use it yourself to decline requests without causing offense, often pairing it with 'keigo' (honorific speech) for maximum politeness.

At the C1 level, your use of 'muzukashii' is highly nuanced. You can identify the subtle differences between 'muzukashii,' 'katai,' and 'shibui' in literary contexts. You understand how 'muzukashii' can be used ironically or to express deep philosophical skepticism. You are comfortable reading academic texts where 'muzukashii' might be replaced by technical terms like 'shousai' (detailed/complex) or 'nanmon' (a difficult problem). You can discuss the etymology of the word and its historical development. In professional negotiations, you use 'muzukashii' with strategic precision, knowing exactly how much weight the word carries in a specific corporate culture. You can also analyze the use of the word in classical Japanese literature, where its predecessors had slightly different connotations regarding social status and difficulty.

At the C2 level, you have a native-like grasp of 'muzukashii.' You can use it in high-level creative writing to evoke specific moods or to describe the 'difficulty' of the human condition. You are aware of archaic or dialectal variations of the word and can use them for stylistic effect. You can engage in deep debates about the linguistic relativity of 'difficulty' in Japanese versus other languages. Your understanding of the word is not just about its meaning, but about its resonance within the entire Japanese linguistic and cultural system. You can navigate the most complex social situations where 'muzukashii' is used as a tool for power dynamics, subtle signaling, and the maintenance of complex social hierarchies. The word is no longer just a vocabulary item; it is a versatile instrument in your linguistic repertoire.

Practice it Examples Notes & Tips

むずかしい in 30 Seconds

Muzukashii means 'difficult' or 'hard' and is a basic i-adjective used for tasks, problems, and learning.
In social contexts, it often serves as a polite way to say 'no' or 'impossible' to maintain harmony.
It conjugates to 'muzukashikatta' (past) and 'muzukashikunai' (negative), which is essential for basic grammar.
It can describe a person's stern personality or a complex, troublesome situation beyond just academic difficulty.

The Japanese word むずかしい (muzukashii) is primarily translated as 'difficult' or 'hard' in English. However, its usage in Japanese society extends far beyond mere academic or physical challenge. At its core, it describes a situation, task, or concept that requires significant effort to overcome or understand. For a beginner student, it is most commonly encountered when discussing school subjects, language learning, or complex instructions. But as you delve deeper into Japanese culture, you will find that 'muzukashii' is a linguistic tool used for social harmony. It is often employed as a polite, indirect way to say 'no' or 'it is impossible.' Instead of a blunt refusal, a Japanese speaker might say 'Sore wa chotto muzukashii desu' (That is a bit difficult), which effectively communicates that the request cannot be fulfilled without causing the loss of face or social friction.

Core Meaning: Something that is not easy to do, understand, or deal with.
Social Nuance: A polite euphemism for 'impossible' or 'I cannot do that' in business and formal settings.
Grammatical Category: An 'i-adjective' (keiyoushi), meaning it ends in 'i' and follows specific conjugation patterns for tense and negation.

日本語の文法はとてもむずかしいです。(Japanese grammar is very difficult.)

In everyday conversation, you will hear children complaining about 'muzukashii' homework, or adults discussing 'muzukashii' interpersonal relationships. It is a versatile word that covers everything from a hard math problem to a complex political situation. When using it, pay attention to the tone; a long, drawn-out 'Muzukashiiiii...' often indicates that the speaker is deep in thought or trying to find a way to express a negative outcome gently.

その質問に答えるのはむずかしいですね。(Answering that question is difficult, isn't it?)

この本は漢字が多くてむずかしいです。(This book has many kanji and is difficult.)

明日のスケジュール調整はむずかしいかもしれません。(Adjusting tomorrow's schedule might be difficult.)

彼はむずかしい顔をしています。(He has a troubled/stern look on his face.)

Using 'muzukashii' correctly requires understanding how i-adjectives function in Japanese grammar. Unlike English adjectives, Japanese i-adjectives contain the verb 'to be' within them and conjugate to show tense and negation. For example, to say something 'was difficult,' you change the final 'i' to 'katta,' resulting in むずかしかった (muzukashikatta). To say something 'is not difficult,' you change the 'i' to 'kunai,' resulting in むずかしくない (muzukashikunai). This structural logic is essential for building accurate sentences in various contexts.

Present Affirmative: むずかしいです (It is difficult.)
Present Negative: むずかしくないです (It is not difficult.)
Past Affirmative: むずかしかったです (It was difficult.)

Beyond simple descriptions, 'muzukashii' can be combined with verbs to express that an action is hard to perform. By taking the stem of a verb and adding '-nikui' (which is related to the concept of difficulty), you create a new adjective. However, 'muzukashii' itself can follow a verb in the dictionary form plus 'no wa' or 'koto wa' to act as a subject. For instance, 'Nihongo o hanasu no wa muzukashii desu' (Speaking Japanese is difficult). This pattern is very common for expressing personal opinions about tasks.

昨日のテストは思ったよりむずかしくなかったです。(Yesterday's test was not as difficult as I thought.)

When modifying a noun directly, 'muzukashii' simply precedes the noun without any particles. For example, 'muzukashii hon' (a difficult book) or 'muzukashii mondai' (a difficult problem). This is the simplest way to use the word. In more advanced speech, you might use the adverbial form むずかしく (muzukashiku) to describe how something is being done or perceived, such as 'muzukashiku kangaeru' (to think about something in a complicated/difficult way).

あまりむずかしく考えないでください。(Please don't think too deeply/difficultly about it.)

このパズルを完成させるのはむずかしい。(Completing this puzzle is difficult.)

もっとむずかしい言葉を覚えたいです。(I want to learn more difficult words.)

'Muzukashii' is ubiquitous in Japanese life. In schools, it is the most frequent adjective used by students to describe their studies. You will hear it in the hallways after an exam, in the library while studying Kanji, and in the classroom when a teacher introduces a new concept. It is the standard way to express academic challenge. However, the word's presence in the professional world is perhaps even more significant. In a Japanese office, 'muzukashii' is a keyword in negotiations. When a client or a boss presents a plan that is unrealistic, a colleague will rarely say 'No' or 'That won't work.' Instead, they will tilt their head, perhaps suck in a breath through their teeth (a gesture known as 'hissing'), and say, 'Sore wa chotto muzukashii desu ne...' This is a clear signal that the proposal is being rejected, but in a way that maintains the 'wa' (harmony) of the group.

A: 来週までに終わりますか？ (Can you finish by next week?)
B: うーん、それはちょっとむずかしいですね。(Hmm, that is a bit difficult [No].)

In media, such as anime and drama, 'muzukashii' is often used to describe complex characters or intricate plots. A detective might say 'Muzukashii jiken da' (It's a difficult case), or a protagonist might describe their feelings as 'muzukashii.' It also appears frequently in news broadcasts when discussing economic policies or international relations, where the situations are inherently 'muzukashii' (complex/problematic). You will also hear it in daily service interactions. If you ask a shopkeeper for a rare item or a special discount, and they cannot provide it, 'muzukashii' will be their go-to response to soften the blow of the refusal.

この機械の操作はむずかしいので、説明書を読んでください。(Operating this machine is difficult, so please read the manual.)

Another interesting place you hear this word is in the context of personality. A person who is 'muzukashii' is someone who is hard to please, picky, or has a stern temperament. If someone says, 'Ano hito wa muzukashii hito da,' they are warning you that the person might be difficult to work with or get along with. This usage highlights the word's ability to describe not just tasks, but the complexity of human nature and social interaction.

最近の経済状況は非常にむずかしい局面にあります。(The recent economic situation is in a very difficult phase.)

One of the most common mistakes English speakers make with 'muzukashii' is using it when they should use 'taihen.' While both can be translated as 'hard' or 'difficult,' they have different nuances. 'Muzukashii' refers to the complexity or the high level of skill required for a task (e.g., a difficult math problem). 'Taihen,' on the other hand, refers to something being 'tough,' 'laborious,' or 'hectic' in terms of effort or circumstance (e.g., a busy day at work). If you say a job is 'muzukashii,' you mean the tasks are intellectually or technically challenging. If you say it is 'taihen,' you mean it is exhausting or overwhelming. Confusing these two can lead to misunderstandings about the nature of your struggle.

❌ 仕事がむずかしいです。(The work is [technically] difficult.)
✅ 仕事が大変です。(The work is [laborious/busy] tough.)

Another mistake involves conjugation. Since 'muzukashii' is an i-adjective, beginners often try to conjugate it like a noun or a na-adjective. For example, saying 'muzukashii deshita' instead of 'muzukashikatta desu.' While 'muzukashii deshita' is sometimes heard in very casual or slightly incorrect speech, the standard polite past tense is 'muzukashikatta desu.' Similarly, the negative form must be 'muzukashikunai,' not 'muzukashijanai.' Mastering the 'i' to 'ku' or 'katta' transition is a vital step in moving past the beginner stage.

❌ むずかしいじゃないです。
✅ むずかしくないです。(It is not difficult.)

Finally, learners often miss the social cue of 'muzukashii' as a rejection. If a Japanese person tells you a request is 'muzukashii,' and you respond by offering to help them make it 'easier,' you have missed the point. In that context, 'muzukashii' is not an invitation to problem-solve; it is a polite 'No.' Pushing back can be seen as aggressive or culturally insensitive. Understanding that 'muzukashii' often functions as a soft wall is key to navigating Japanese social and professional environments successfully.

While 'muzukashii' is the most common word for 'difficult,' Japanese offers several alternatives depending on the level of formality and the specific type of difficulty. Understanding these synonyms will help you sound more natural and precise. For instance, in formal writing or news reports, you will often see 困難 (konnan). This word specifically refers to 'hardship' or 'great difficulty' and is much more formal than 'muzukashii.' Another common word is 複雑 (fukuzatsu), which means 'complex' or 'complicated.' Use 'fukuzatsu' when the difficulty arises from having many interconnected parts rather than just being hard to do.

困難 (Konnan): Formal 'difficulty' or 'hardship.' Used in news and literature. (e.g., 困難な状況 - a difficult situation).
複雑 (Fukuzatsu): 'Complex' or 'complicated.' Used for intricate systems or feelings. (e.g., 複雑な仕組み - a complex mechanism).
厄介 (Yakkai): 'Troublesome' or 'nuisance.' Used when something is difficult because it is annoying or creates extra work.

For things that are 'hard to deal with' or 'tough,' 大変 (taihen) is the go-to word. As mentioned before, it focuses on the effort required. If a task is 'hard to handle' because it is physically demanding, you might use きつい (kitsui), which can mean 'tight,' 'strenuous,' or 'harsh.' In a more literary or academic sense, 難解 (nankai) is used for texts or theories that are 'hard to understand' or 'esoteric.' By choosing the right word, you can specify whether something is difficult because it's complex, formal, annoying, or physically exhausting.

この問題は非常に困難です。(This problem is extremely difficult [formal].)

彼の説明は複雑すぎて分かりません。(His explanation is too complex to understand.)

How Formal Is It?

Fun Fact

In ancient times, 'muzukashii' was used to describe ghosts or eerie things because they were 'unpleasant' or 'disturbing.' Today, it just means your math homework is hard!

Pronunciation Guide

UK /mɯzɯkaɕii/

US /mʊzʊkɑʃii/

In Japanese pitch accent (Tokyo dialect), 'muzukashii' is an 'Heiban' (flat) or 'Nakadaka' type depending on the speaker, but generally, the pitch starts low on 'mu' and rises on 'zu'.

Difficulty Rating

Reading 2/5

The hiragana is easy, but the kanji '難' has many strokes and can be tricky for beginners.

Writing 3/5

Writing the kanji '難' requires careful attention to stroke order and balance.

Speaking 1/5

The pronunciation is straightforward with no difficult sounds for English speakers.

Listening 1/5

It is a very distinct-sounding word that is easy to pick out in conversation.

What to Learn Next

Prerequisites

いい (ii) - good たのしい (tanoshii) - fun です (desu) - to be はい (hai) - yes いいえ (iie) - no

Learn Next

やさしい (yasashii) - easy かんたん (kantan) - simple たいへん (taihen) - tough おもしろい (omoshiroi) - interesting つまらない (tsumaranai) - boring

Advanced

困難 (konnan) - hardship 複雑 (fukuzatsu) - complex 難解 (nankai) - esoteric 厄介 (yakkai) - troublesome 厳しい (kibishii) - strict

Grammar to Know

I-adjective Conjugation

むずかしい -> むずかしくない (negative), むずかしかった (past).

Nominalization with 'no wa'

漢字を覚えるのはむずかしいです。

Verb Stem + nikui

このペンは書きにくいです (This pen is difficult to write with).

Adverbial form with 'ku'

むずかしく考えすぎないでください。

Te-form for reasons

むずかしくて分かりません (It's difficult, so I don't understand).

Examples by Level

この漢字はむずかしいです。

This kanji is difficult.

Simple present affirmative of an i-adjective.

日本語の勉強はむずかしいですか？

Is studying Japanese difficult?

Question form using 'desu ka'.

昨日の宿題はむずかしかったです。

Yesterday's homework was difficult.

Past affirmative form: 'muzukashikatta'.

この本はむずかしくないです。

This book is not difficult.

Present negative form: 'muzukashikunai'.

テストはあまりむずかしくなかったです。

The test was not very difficult.

Past negative form: 'muzukashikunakatta'.

むずかしい言葉は分かりません。

I don't understand difficult words.

Adjective modifying a noun directly.

それはちょっとむずかしいですね。

That is a bit difficult, isn't it?

Using 'chotto' to soften the statement.

もっとむずかしい問題がありますか？

Are there more difficult problems?

Using 'motto' (more) with the adjective.

漢字を書くのはむずかしいです。

Writing kanji is difficult.

Using 'no wa' to nominalize the verb 'kaku'.

このゲームはむずかしいけれど、おもしろいです。

This game is difficult, but it is interesting.

Using 'keredo' (but) to connect two adjectives.

先生の話はむずかしくて、分かりませんでした。

The teacher's talk was difficult, and I didn't understand.

Using the 'te-form' of the adjective (muzukashikute) to connect sentences.

むずかしい本を読みたくないです。

I don't want to read difficult books.

Adjective modifying a noun in a 'want to' sentence.

明日のテストはむずかしいと思います。

I think tomorrow's test will be difficult.

Using 'to omoimasu' to express an opinion.

この料理を作るのはむずかしくないですよ。

Making this dish is not difficult, you know.

Nominalized verb phrase with negative adjective.

どちらがむずかしいですか？

Which one is more difficult?

Comparison question using 'dochira'.

むずかしかったら、聞いてください。

If it is difficult, please ask.

Conditional 'tara' form: 'muzukashikattara'.

この薬は苦くて飲みにくいです。

This medicine is bitter and difficult to drink.

Using the suffix '-nikui' (difficult to) attached to the verb stem.

彼を説得するのは非常にむずかしい。

Persuading him is extremely difficult.

Using 'hijou ni' (extremely) for emphasis.

むずかしい問題を一つずつ解決しましょう。

Let's solve the difficult problems one by one.

Using the volitional form 'shimashou' with the adjective.

今の仕事を辞めるのはむずかしい決断でした。

Quitting my current job was a difficult decision.

Adjective modifying the noun 'ketsudan' (decision).

日本語で冗談を言うのはむずかしいです。

Telling jokes in Japanese is difficult.

Nominalized verb phrase as the subject.

あまりむずかしく考えないほうがいいですよ。

It's better not to think too complicatedly.

Adverbial form 'muzukashiku' modifying the verb 'kangaeru'.

その計画を実現するのはむずかしいかもしれません。

It might be difficult to realize that plan.

Using 'kamoshirenai' (might) to express uncertainty.

むずかしい顔をして、どうしたんですか？

You have a troubled look, what's the matter?

Idiomatic use of 'muzukashii kao' (troubled/stern face).

専門用語が多くて、この論文はむずかしい。

This paper is difficult because there is a lot of technical jargon.

Causal 'te-form' followed by the adjective.

予算の関係で、そのプロジェクトはむずかしい状況にあります。

Due to budget issues, that project is in a difficult situation.

Describing a 'situation' (joukyou) as difficult.

彼女はむずかしい性格なので、付き合うのが大変です。

She has a difficult personality, so it's hard to get along with her.

Describing 'personality' (seikaku) as difficult.

この数式を解くのは、私にはむずかしすぎます。

Solving this equation is too difficult for me.

Using the suffix '-sugiru' (too much) with the adjective.

交渉をまとめるのは非常にむずかしい作業だった。

Wrapping up the negotiations was a very difficult task.

Past tense 'datta' with the noun phrase.

むずかしい条件をクリアしなければなりません。

We must clear difficult conditions.

Using 'nakereba narimasen' (must) with the object.

初心者がこの山に登るのはむずかしいでしょう。

It will probably be difficult for beginners to climb this mountain.

Using 'deshou' to express a logical deduction.

景気の回復は、まだむずかしい見通しです。

The outlook for economic recovery is still difficult.

Describing an 'outlook' (mitooshi) as difficult.

その哲学的な問いに答えるのは、極めてむずかしい。

Answering that philosophical question is extremely difficult.

Using 'kiwamete' (extremely/exceedingly) for high-level emphasis.

両国の関係改善は、一筋縄ではいかないむずかしい問題だ。

Improving relations between the two countries is a difficult problem that won't be solved easily.

Using the idiom 'hitosujinawa de wa ikanai' (not straightforward).

彼はむずかしい本ばかり読んでいて、近寄りがたい雰囲気がある。

He reads nothing but difficult books and has an unapproachable aura.

Using 'bakari' (nothing but) to emphasize the frequency.

この古文書を解読するのは、専門家でもむずかしい作業だ。

Deciphering this ancient document is a difficult task even for experts.

Using 'demo' (even) to highlight the level of difficulty.

感情を言葉にするのは、時として非常にむずかしい。

Putting emotions into words is sometimes very difficult.

Using 'toki to shite' (sometimes/at times).

その微妙なニュアンスを翻訳するのはむずかしい。

It is difficult to translate that subtle nuance.

Describing the difficulty of 'nuance' (nyuansu).

むずかしい局面に立たされた時こそ、真価が問われる。

It is precisely when faced with a difficult situation that one's true value is tested.

Using 'koso' for strong emphasis.

現代社会が抱えるむずかしい課題について議論した。

We discussed the difficult challenges facing modern society.

Using 'kakaeru' (to hold/face) with 'kadai' (challenge).

事態は、我々の予想を遥かに超えてむずかしいものとなった。

The situation became far more difficult than we had anticipated.

Using 'haruka ni koete' (far exceeding) for comparison.

その作家の文体は、難解でむずかしい表現が多用されている。

That author's style frequently employs esoteric and difficult expressions.

Using 'nankai' (esoteric) alongside 'muzukashii'.

真理を追究する道は、険しく、そしてむずかしい。

The path to pursuing truth is steep and difficult.

Literary use of multiple adjectives to describe a 'path' (michi).

伝統芸能の奥義を極めるのは、並大抵のことではなく、極めてむずかしい。

Mastering the secrets of traditional arts is no ordinary feat and is extremely difficult.

Using 'namitaitei no koto de wa naku' (no ordinary feat).

彼は、むずかしい年配の顧客をあしらうのが非常に巧みだ。

He is very skillful at handling difficult elderly customers.

Using 'ashirau' (to handle/deal with) in a social context.

制度の抜本的な改革は、政治的に極めてむずかしい課題である。

Fundamental reform of the system is a politically extremely difficult challenge.

Using 'bapponteki' (fundamental/drastic) with 'kaikaku' (reform).

その古語の意味を正確に捉えるのは、現代人にはむずかしい。

Grasping the exact meaning of that archaic word is difficult for modern people.

Focusing on the difficulty of 'archaic words' (kogo).

人生の岐路において、むずかしい選択を迫られることがある。

At the crossroads of life, one is sometimes forced to make a difficult choice.

Using 'seramareru' (to be forced/pressed) with 'sentaku' (choice).

Common Collocations

むずかしい問題

むずかしい顔

むずかしい状況

むずかしい判断

むずかしい言葉

むずかしい性格

むずかしい条件

むずかしい時代

むずかしい年頃

むずかしい役

Common Phrases

ちょっとむずかしいです

— A polite way to say 'no' or 'I can't do that.' It is essential for business etiquette.

その日程はちょっとむずかしいです。

むずかしく考える

— To overthink something or make it more complicated than it needs to be.

そんなにむずかしく考えないで。

むずかしい顔をする

— To look worried, stern, or deep in thought. It describes a facial expression.

父はむずかしい顔をして新聞を読んでいる。

むずかしい年頃

— Refers to a sensitive or rebellious age, usually puberty or adolescence.

彼は今、むずかしい年頃なんです。

むずかしい話

— A complicated topic, a serious discussion, or something hard to understand.

むずかしい話は抜きにしましょう (Let's skip the complicated talk).

むずかしい立場

— To be in a difficult position or a tough spot socially or professionally.

私は今、むずかしい立場にいます。

むずかしい顔を合わせる

— To meet with someone who is stern or with whom you have a difficult relationship.

彼とむずかしい顔を合わせるのは嫌だ。

むずかしい選択

— A hard choice that requires a lot of thought and has significant consequences.

それはとてもむずかしい選択でした。

むずかしい課題

— A difficult challenge or task that needs to be addressed.

新しいプロジェクトにはむずかしい課題が多い。

むずかしい相手

— A difficult person to deal with or a tough opponent.

次の試合の相手はむずかしい相手だ。

Often Confused With

むずかしい vs 大変 (taihen)

Taihen means 'tough' or 'hectic' (effort-based), while muzukashii means 'difficult' (complexity-based).

むずかしい vs 厳しい (kibishii)

Kibishii means 'strict' or 'harsh' (authority/condition-based), not necessarily 'hard to understand'.

むずかしい vs 複雑 (fukuzatsu)

Fukuzatsu means 'complex' or 'tangled'. Something can be fukuzatsu but not necessarily muzukashii to do.

Idioms & Expressions

"むずかしい顔をする"

— To wear a stern, troubled, or serious expression. Often used when someone is thinking hard or unhappy.

部長はむずかしい顔をして会議室を出た。

Neutral

"一筋縄ではいかない"

— Not straightforward; something that cannot be solved by ordinary means. Often used with 'muzukashii'.

この問題は一筋縄ではいかないむずかしいものだ。

Formal

"眉をひそめる"

— To frown or knit one's brows, often because something is 'muzukashii' or unpleasant.

彼はむずかしい問題を見て眉をひそめた。

Neutral

"頭を抱える"

— To hold one's head in one's hands, indicating that a problem is very 'muzukashii' or distressing.

あまりのむずかしさに頭を抱えてしまった。

Informal

"難色を示す"

— To show disapproval or hesitation. Often the reaction when a request is 'muzukashii'.

彼は私の提案に難色を示した。

Formal

"暗礁に乗り上げる"

— To hit a deadlock or a 'difficult' snag in a process.

交渉はむずかしい問題で暗礁に乗り上げた。

Formal

"匙を投げる"

— To give up on something because it is too 'muzukashii' (literally 'to throw the spoon').

医者も匙を投げるほどむずかしい病気だった。

Neutral

"壁にぶつかる"

— To hit a wall; to face a 'difficult' obstacle in one's progress.

研究がむずかしくなり、壁にぶつかっている。

Neutral

"手を焼く"

— To be at a loss with; to find something 'difficult' to handle or manage.

むずかしい生徒に手を焼いている。

Informal

"頭を悩ませる"

— To rack one's brains over a 'difficult' problem.

そのむずかしい課題に頭を悩ませている。

Neutral

Easily Confused

むずかしい vs 易しい (yasashii)

Sounds exactly like 'kind' (優しい).

Written with different kanji. Context usually clarifies if a person is 'kind' or a task is 'easy'.

易しいテスト (Easy test) vs 優しい先生 (Kind teacher).

むずかしい vs きつい (kitsui)

Both can mean 'hard'.

Kitsui refers to physical strain or a tight fit. Muzukashii is for mental or technical difficulty.

練習がきつい (The practice is physically grueling).

むずかしい vs 辛い (tsurai)

Both can mean 'hard'.

Tsurai refers to emotional pain or hardship. Muzukashii is for tasks.

別れは辛い (Parting is emotionally hard).

むずかしい vs 苦しい (kurushii)

Both can mean 'difficult'.

Kurushii refers to physical suffering or being in a tight spot financially/socially.

生活が苦しい (Life is a struggle/economically difficult).

むずかしい vs 面倒 (mendou)

Both can mean 'hard'.

Mendou means 'bothersome' or 'too much trouble'. It's about laziness or annoyance, not lack of skill.

掃除は面倒だ (Cleaning is a bother).

Sentence Patterns

[Noun] はむずかしいです。

テストはむずかしいです。

[Noun] はむずかしくないです。

本はむずかしくないです。

[Verb Dictionary Form] のはむずかしいです。

泳ぐのはむずかしいです。

[Noun] は [Noun] よりむずかしいです。

漢字はひらがなよりむずかしいです。

[Verb Stem] にくいです。

この本は読みにくいです。

むずかしくなりました。

ゲームがむずかしくなりました。

むずかしいと思われます。

成功はむずかしいと思われます。

むずかしい局面に立たされる。

会社はむずかしい局面に立たされた。

Word Family

Nouns

むずかしさ (muzukashisa) - difficulty (the degree of being difficult)

Adjectives

むずかしい (muzukashii) - difficult

難 (nan) - difficulty / flaw

難問 (nanmon) - difficult problem

難所 (nansho) - difficult place to pass

難関 (nankan) - difficult barrier

困難 (konnan) - hardship

How to Use It

frequency

Extremely High. It is one of the top 500 most used words in Japanese.

Common Mistakes

Using 'muzukashii' for 'busy'. → Taihen (大変) or Isogashii (忙しい).
If you have too much work, you are 'isogashii' or the situation is 'taihen.' 'Muzukashii' only refers to the complexity of the work itself.
Saying 'muzukashii deshita'. → Muzukashikatta desu.
I-adjectives must be conjugated to the '-katta' form for the past tense. 'Deshita' is for nouns and na-adjectives.
Saying 'muzukashii janai'. → Muzukashikunai.
I-adjectives use '-kunai' for negation. 'Janai' is for nouns and na-adjectives.
Using 'muzukashii' for a strict person. → Kibishii (厳しい).
If a teacher is strict, they are 'kibishii.' If their test is hard, it is 'muzukashii.'
Using 'muzukashii' for heavy objects. → Omoi (重い).
'Muzukashii' is never used for physical weight. It is only for mental or technical challenge.

Tips

Adjective Conjugation

Always remember that 'muzukashii' is an i-adjective. This means it changes to 'muzukashiku' before 'nai' (negative) and 'naru' (to become). Avoid saying 'muzukashii nai' as it is grammatically incorrect and sounds very unnatural to native speakers.

The Soft 'No'

In Japan, directness can be seen as rude. If you need to say 'no' to a request, 'muzukashii' is your best friend. It allows you to decline while blaming the 'difficulty' of the situation rather than your own lack of will, which helps maintain social harmony.

Tone Matters

When you say 'muzukashii,' your tone and body language are important. Tilting your head and looking slightly troubled while saying it helps convey the nuance that you are genuinely considering the challenge or that you are politely declining.

Muzukashii vs. Taihen

Remember: 'Muzukashii' is for the brain (complexity), 'Taihen' is for the body/spirit (effort/stress). If you are busy at work, say 'Taihen desu.' If you are solving a hard math problem, say 'Muzukashii desu.'

Kanji Practice

The kanji for 'muzukashii' is 難. It's a high-stroke count character (18 strokes). Practice it often, as it appears in many important words like 'konnan' (hardship) and 'arigatou' (originally 'it is difficult to be').

Catching the Slang

Listen for 'muzui' in anime or among Japanese teenagers. It's a quick way to say 'This is hard!' and is very common in gaming and school contexts. Just don't use it in a job interview!

Using 'Chotto'

Pairing 'muzukashii' with 'chotto' (a little) is the most natural way to use it. Even if something is extremely difficult, saying 'chotto muzukashii' makes you sound more humble and polite in Japanese.

Verb + Nikui

Once you master 'muzukashii,' learn the '-nikui' suffix. It's a more advanced way to say 'difficult to [verb].' For example, 'tabenikui' (difficult to eat) or 'wakarinikui' (difficult to understand).

The 'Muzu' Sound

Associate 'Muzu' with 'Puzzle.' Puzzles are often 'muzukashii'! This simple sound association can help you recall the word quickly when you're stuck.

Personality Descriptions

Be careful when describing people. Calling someone 'muzukashii' isn't about their intelligence; it's about their temperament. Use it for someone who is hard to satisfy or has a prickly personality.

Memorize It

Mnemonic

Think of a 'Music' (muzu) 'Cash' (kashi) 'E' (i). It's 'difficult' to make 'Music' for 'Cash' easily!

Visual Association

Imagine a person looking at a giant mountain of Kanji characters, scratching their head and saying 'Muzukashii!'

Word Web

Hard Complex No Problem Kanji Test Stern Troublesome

Challenge

Try to use 'muzukashii' in three different ways today: once for a task, once for a feeling, and once as a polite 'no' (even if just in your head!).

Word Origin

The word 'muzukashii' originates from the classical Japanese verb 'muzukaru,' which meant to feel unpleasant, to be cranky, or to fret. In the Heian period, it described a state of being emotionally disturbed or finding something repulsive. Over time, the meaning shifted from a subjective feeling of unpleasantness to the objective quality of a task being hard to perform or a situation being hard to handle.

Original meaning: To feel unpleasant or cranky.

Japonic

Cultural Context

Be careful not to use 'muzukashii' to describe a person to their face, as it implies they are cranky or hard to deal with.

English speakers tend to be more direct. If something is 'difficult,' we might still try it. In Japan, 'difficult' often means 'don't try.'

Commonly heard in 'Shonen' anime when a hero faces a 'muzukashii' opponent. A frequent word in J-Pop lyrics about 'muzukashii' love. Used in Japanese news when discussing the 'muzukashii' Northern Territories issue.

Practice in Real Life

Real-World Contexts

School/Education

テストがむずかしい
宿題がむずかしい
数学はむずかしい
むずかしい漢字

Business/Work

それはちょっとむずかしいです
むずかしい判断ですね
交渉がむずかしい
むずかしい課題

Games/Hobbies

このレベルはむずかしい
むずかしいパズル
操作がむずかしい
むずかしい曲

Human Relations

むずかしい性格
むずかしい年頃
付き合うのがむずかしい
むずかしい顔

Daily Life

むずかしい話は抜きで
むずかしく考えないで
説明がむずかしい
むずかしい状況

Conversation Starters

"日本語の勉強で、何が一番むずかしいですか？ (What is the most difficult thing about studying Japanese?)"

"最近、何かむずかしい本を読みましたか？ (Have you read any difficult books lately?)"

"このパズル、むずかしいと思いませんか？ (Don't you think this puzzle is difficult?)"

"仕事でむずかしい判断をしなければならない時、どうしますか？ (What do you do when you have to make a difficult decision at work?)"

"むずかしい漢字を覚えるコツは何ですか？ (What is the trick to remembering difficult kanji?)"

Journal Prompts

今日、一番むずかしいと感じたことは何ですか？なぜですか？ (What did you feel was the most difficult thing today? Why?)

むずかしいけれど、達成感があった経験について書いてください。 (Write about an experience that was difficult but gave you a sense of accomplishment.)

あなたが「むずかしい人」だと思うのはどんな人ですか？ (What kind of person do you think is a 'difficult person'?)

外国語を学ぶ時、一番むずかしいのは何だと思いますか？ (What do you think is the most difficult part of learning a foreign language?)

「むずかしい」という言葉を使わずに、困難を表現してみてください。 (Try to express difficulty without using the word 'muzukashii'.)

Frequently Asked Questions

10 questions

Yes, but it's more common in formal or semi-formal situations. With close friends, you might just say 'muri' (impossible) or 'dekinai' (can't do it). Using 'muzukashii' with a friend might sound a bit stiff or like you're making an excuse. However, 'chotto muzukashii kamo' (it might be a bit difficult) is a very common soft way to decline plans.

'Muzui' is a slang abbreviation used primarily by young people and in very casual settings. It's like saying 'hard' instead of 'difficult' in English, but even more informal. You should never use 'muzui' with your teacher, boss, or anyone you don't know well. Stick to 'muzukashii' in those cases.

Because it is an i-adjective, you drop the final 'i' and add 'katta'. So, 'muzukashii' becomes 'muzukashikatta'. If you want to be polite, add 'desu' at the end: 'muzukashikatta desu'. For example: 'Kinou no shiken wa muzukashikatta desu' (Yesterday's exam was difficult).

Yes, but be careful. 'Muzukashii hito' refers to someone who is hard to please, picky, or has a stern temperament. It's not a compliment. It's often used to describe a boss who is very strict or an elderly person who is set in their ways. You wouldn't use it to mean someone is 'intelligent' or 'complex' in a positive way.

In many contexts, yes. Especially in business, 'Sore wa muzukashii desu' is a standard euphemism for 'That is impossible' or 'We cannot do that.' If you hear this in a negotiation, you should understand it as a rejection rather than a challenge to overcome.

You use the suffix '-sugiru'. For i-adjectives, you drop the final 'i' and add 'sugiru'. So, 'muzukashii' becomes 'muzukashisugiru'. Example: 'Kono hon wa muzukashisugiru' (This book is too difficult). To be polite, add 'desu': 'muzukashisugiru desu' or 'muzukashisugimasu'.

The most common opposites are 'yasashii' (easy/simple) and 'kantan' (simple). 'Yasashii' is an i-adjective, while 'kantan' is a na-adjective. 'Kantan' is often used for things that are simple in structure, while 'yasashii' is used for things that are easy to understand or do.

No. For something that is physically heavy, use 'omoi'. If a task is physically demanding, use 'taihen' or 'kitsui'. 'Muzukashii' is reserved for mental, technical, or social difficulty.

It literally means 'difficult face,' but it's an idiom for a 'stern,' 'troubled,' or 'serious' expression. If someone is frowning while thinking or looks unhappy about a situation, you can say they are making a 'muzukashii kao'.

You can say 'Sorehodo muzukashikunai desu' or 'Amari muzukashikunai desu'. 'Sorehodo' means 'to that extent' and 'amari' means 'not very' (when used with a negative). Example: 'Kono kanji wa amari muzukashikunai desu'.