LESSON NOTES · レッスンノート

N3How you sound · Sep 28, 2026

Exaggerate" vs "vague" in Japanese: 誇張こちょう・大おおげさ vs 曖昧あいまい・ぼかす

誇張こちょう (kochou) and its everyday twin 大おおげさ (oogesa) both mean exaggerating — describing something as bigger, more dramatic, or more extreme than it really is. 曖昧あいまい (aimai) and its casual version はっきりしない (hakkiri shinai) mean vague or unclear — not overstating anything, just refusing to pin down a clear answer. These are opposite problems: one inflates, the other blurs.

Tell someone their story is 曖昧あいまい when you mean it's 大おおげさ, and you've accused them of being unclear when you actually meant they overstated things — a fair complaint aimed at the wrong target.

The basics

誇張こちょう and 大おおげさ: exaggerating, making it sound bigger

誇張こちょう (こちょう, kochou) is the more formal, noun-based word for exaggeration — used in writing, media criticism, and analysis. 大おおげさ (おおげさ, oogesa) is the everyday adjective version people actually reach for in conversation.

その記事きじは誇張こちょうが多おおい。 — That article has a lot of exaggeration. (formal, often about media or writing) そんなに大おおげさに言いわなくてもいいよ。 — You don't have to make it sound so dramatic. (casual, said to a person directly)

大おおげさ also works as a light criticism of someone's reaction, not just their words — 大おおげさに反応はんのうする ("to overreact") is one of its most common uses.

曖昧あいまい and はっきりしない: vague, unclear

曖昧あいまい (あいまい, aimai) is the formal word for vague or ambiguous — unclear boundaries, an unclear meaning, a non-committal answer. はっきりしない is the plain, everyday way to say "not clear."

彼かれの返事へんじは曖昧あいまいだった。 — His answer was vague. (formal-ish, often about someone dodging a clear position) 予定よていがまだはっきりしない。 — The schedule still isn't clear. (everyday, about facts rather than someone's evasiveness)

Crucially, 曖昧あいまい doesn't imply anything is being overstated — the problem is the opposite: not enough information, or an answer that deliberately avoids commitment. In daily life the classic example is 今日きょうはちょっと…, which sounds non-committal but, as ちょっと explains, is a finished refusal: the listener supplies the missing no.

The core difference: inflating vs. blurring

大おおげさ/誇張こちょう make something bigger than reality; 曖昧あいまい/はっきりしない make something unclear, with no claim about size at all. A story can be exaggerated and perfectly clear at the same time (大おおげさだけど曖昧あいまいじゃない — "exaggerated but not vague"), or vague without exaggerating anything (曖昧あいまいだけど大おおげさじゃない).

彼かれの話はなしは大おおげさだけど、言いいたいことははっきりしている。 — His story is exaggerated, but what he means is clear. (inflated, not vague) 彼女かのじょの返事へんじは曖昧あいまいで、賛成さんせいなのか反対はんたいなのか分わからない。 — Her answer was vague — I can't tell if she agrees or disagrees. (unclear, not necessarily exaggerated)

Beyond the basics

ぼかす: deliberately making something vague

ぼかす (bokasu, literally "to blur," as in photography) is the verb for actively making something vague on purpose — softening a statement, avoiding specifics deliberately, rather than a statement just happening to be unclear.

彼かれは名前なまえをぼかして話はなした。 — He talked without giving specifics, deliberately blurring the name. (intentional vagueness, often to protect someone or avoid commitment)

The distinction from 曖昧あいまい matters: 曖昧あいまい describes the result (an answer that came out unclear, whether or not that was intended), while ぼかす describes the act of choosing vagueness on purpose — closely related to the strategic indirectness discussed in honne and tatemae.

盛もる: exaggerating a story for effect (very casual)

盛もる (もる, moru, literally "to pile on") is extremely casual slang for embellishing a story — piling on extra drama or detail for effect, especially common among younger speakers and on social media.

その話はなし、盛さかってるでしょ? — You're totally embellishing that story, aren't you? (casual, teasing, common among friends)

盛もる leans more playful and social than 大おおげさ, which can carry real criticism — 盛もる is often said with a laugh, pointing out harmless storytelling flourish rather than a real complaint about dishonesty. It's a much lighter kind of indirectness than sarcasm in Japanese, where the gap between words and meaning is the whole point rather than just embellishment.

Why 大おおげさ reactions are a comedy staple in anime

大おおげさ reactions — wildly exaggerated shock, dramatic collapses, screaming over small things — are a core visual comedy tool in anime, and characters often call each other out for it directly (大おおげさだよ!). Meanwhile 曖昧あいまい shows up in a completely different register: the deliberately unclear confession, the answer that dodges a yes-or-no question, which drives romantic tension rather than comedy. The same show can use both tools for opposite emotional effects.

「大おおげさだよ!」とツッコミが入はいる。 — "You're overreacting!" comes the retort. (classic straight-man line in comedic anime pairs)

Common mistakes

  • Using 曖昧あいまい to criticize someone's over-the-top reaction. That's 大おおげさ's job — 曖昧あいまい is about unclear meaning, not inflated drama; they address completely different complaints.
  • Using 大おおげさ for someone who's just being unclear, not dramatic. If someone gave a wishy-washy non-answer without any exaggeration, 曖昧あいまい or はっきりしない fit; 大おおげさ would wrongly imply they overstated something.
  • Treating ぼかす and 曖昧あいまい as the same word. ぼかす is the deliberate action; 曖昧あいまい is the resulting quality. You can ask 曖昧あいまいな理由りゆう ("a vague reason") without implying anyone was actively ぼかしている ("deliberately blurring") it — it might just genuinely be unclear.
  • Assuming 盛もる always means lying. It's usually understood as harmless embellishment for a better story, not deception meant to seriously mislead — treating it as a real accusation of lying overstates what 盛もる actually implies.

Which word should you use?

Word Reading What it describes Register
誇張こちょう こちょう Exaggeration (as a noun/concept) Formal, written
大おおげさ おおげさ Exaggerated, over-the-top Everyday
盛もる もる Embellishing a story for effect Very casual
曖昧あいまい あいまい Vague, ambiguous Formal-ish
はっきりしない はっきりしない Not clear Everyday
ぼかす ぼかす To deliberately blur/soften Everyday

FAQ

Can something be both 大おおげさ and 曖昧あいまい at the same time? Yes — an exaggerated story can also be vague on details (大おおげさで曖昧あいまいな話はなし, "an exaggerated and vague story"), though the two qualities are independent of each other.

Is 大おおげさ always negative? Mostly mildly critical, but it can be affectionate teasing among friends — 大おおげさだなあ said with a laugh is gentler than a real complaint.

What's the difference between ぼかす and 隠かくす (hiding)? 隠かくす (かくす) means fully hiding or concealing something so it's not known at all; ぼかす means softening or blurring it so it's mentioned but not specified — a partial, not total, withholding.

Is 曖昧あいまい ever a compliment, like being tactfully diplomatic? It's usually neutral-to-negative — describing indecisiveness or unclear communication — but in specific contexts (avoiding an awkward direct refusal) it can be read as tactfully vague rather than simply unhelpful.

How would you tell a friend their story sounds embellished, casually? それ、盛さかってない? ("Aren't you embellishing that?") is the natural, casual way to call it out without a serious accusation.

Is there a word for the opposite of 曖昧あいまい — being completely clear? 明確めいかく (めいかく, meikaku, "clear, definite") is the direct opposite — used for answers, rules, or explanations that leave no ambiguity.

Practice

1. "That article has a lot of exaggeration." (formal, about writing)

Show answer

その記事きじは誇張こちょうが多おおい。 — 誇張こちょう is the formal noun for exaggeration, common in media criticism.

2. "You don't have to make it sound so dramatic." (casual, said directly)

Show answer

そんなに大おおげさに言いわなくてもいいよ。 — 大おおげさ is the everyday word people actually say to each other.

3. "His answer was vague." (unclear, non-committal)

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彼かれの返事へんじは曖昧あいまいだった。 — 曖昧あいまい fits an unclear or non-committal answer, not an exaggerated one.

4. "He talked without giving specifics, deliberately blurring the name."

Show answer

彼かれは名前なまえをぼかして話はなした。 — ぼかす is the verb for actively choosing to blur something, not just it happening to be unclear.

5. "You're totally embellishing that story, aren't you?" (casual, teasing)

Show answer

その話はなし、盛さかってるでしょ? — 盛もる is playful slang for piling extra drama onto a story.

6. Fix this: 彼かれの返事へんじは大おおげさだった。(should describe an unclear answer, not an exaggerated one)

Show answer

彼かれの返事へんじは曖昧あいまいだった。 — an unclear, non-committal answer calls for 曖昧あいまい, not 大おおげさ.

7. "'You're overreacting!' comes the retort." (classic comedic anime line)

Show answer

「大おおげさだよ!」とツッコミが入はいる。 — this straight-man retort to exaggerated reactions is a comedy staple.

8. "Her answer was vague — I can't tell if she agrees or disagrees."

Show answer

彼女かのじょの返事へんじは曖昧あいまいで、賛成さんせいなのか反対はんたいなのか分わからない。 — 曖昧あいまい names the unclearness directly, with no exaggeration implied.

Practise calling a story 大おおげさ and an answer 曖昧あいまい in a trial lesson, then ぼかす a detail on purpose to feel the opposite.

Vocabulary from this article

Tap the block to select all of it, then copy. In Anki: File → Import, note type Basic, separator Tab — the first column becomes the front, the second the back.

誇張	こちょう — exaggeration (formal)
大げさ	おおげさ — exaggerated, over-the-top
盛る	もる — to embellish a story (casual slang)
曖昧	あいまい — vague, ambiguous
はっきりしない	はっきりしない — not clear
ぼかす	ぼかす — to deliberately blur/soften
隠す	かくす — to hide, conceal
明確	めいかく — clear, definite
反応する	はんのうする — to react
返事	へんじ — a reply, answer

I'm Yuuki, a Japanese teacher based in Tokyo. I've taught on italki as a Top 1% teacher and watched over 1,500 anime, and 大おおげさ versus 曖昧あいまい is a distinction I see students reach for the wrong word on constantly — they're opposite problems, not two shades of the same complaint.

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Sources: the author's own lessons and standard reference grammars.

More drills like the ones above, plus a timed JLPT-style mock test: Practice · N3 · Read something at this level: JLPT N3 stories with audio

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