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N4How you sound · Oct 4, 2026

キモい (kimoi) meaning: "gross, creepy", and why it can hurt more than you think

キモい (kimoi) is casual slang for "gross" or "creepy". It is short for 気持ち悪きもちわるい (きもちわるい), "bad feeling". Said about a bug or a weird smell, it is everyday talk. Said about a person, it is one of the harshest casual insults in Japanese.

You will hear キモい constantly in anime, especially from teenage characters reacting to something disgusting or a classmate acting strangely. Because it is short and catchy, learners pick it up fast. The problem is calibration: キモい is far more cutting than English "gross" when aimed at someone, and it has a history as a playground insult. This post explains where it comes from, how strong it is, its cousins, and what to say instead when you just mean "I don't like this".

What does キモい mean?

Where does キモい come from?

キモい is a clipped form of 気持ち悪きもちわるい (きもちわるい), literally "the feeling is bad". Japanese slang often keeps the first syllables of a word and adds い to make an adjective. The same pattern gives ウザい from うざったい (annoying) and グロい from グロテスク (grotesque).

この虫むし、キモい! — This bug is gross! (casual, a normal reaction) うわ、キモ……。 — Ew, gross... (casual, even shorter, without い)

The bare キモ without い is common as an exclamation, like "ew". For more clipped words like this, see Japanese abbreviations.

What can be キモい?

Bugs, slimy food, strange textures, unsettling images, and creepy behavior. It covers both physical disgust ("gross") and social discomfort ("creepy").

このゼリーの食感しょっかん、ちょっとキモい。 — The texture of this jelly is a bit gross. (casual, honest reaction to food) 知しらない人ひとにずっと見みられて、キモかった。 — A stranger kept staring at me; it was creepy. (casual, social discomfort)

How strong is キモい about a person?

Very strong. お前まえ、キモい is "you're disgusting", and it can be deeply hurtful. In schools, キモい is often used as a bullying word, which is why many adults are careful with it. Among close friends, it can be a joke (今いまの顔かお、キモ!, "that face you just made, gross!"), but the line is thin.

キモいって言いわないで。 — Don't call me gross. (casual, hurt)

If you are a learner, the safe rule is: use キモい about things, not people.

What words are close to キモい?

What is the difference between キモい and 気持ち悪きもちわるい?

気持ち悪きもちわるい is the full, standard phrase, and it has two meanings: "I feel sick" about your own body, and "gross, creepy" about something else. キモい only has the second meaning.

気持ち悪きもちわるい……吐はきそう。 — I feel sick... I think I'm going to throw up. (casual, about your own body) あの映画えいが、気持きもち悪わるかった。 — That movie was disturbing. (casual, about something else)

So if you feel nauseous, say 気持ち悪きもちわるい, not キモい. キモい would sound like you find yourself disgusting.

What does キショい mean?

キショい is a stronger variant from 気色悪きしょくわるい (きしょくわるい), "unpleasant, creepy", often said to be heard more in western Japan. It can have an even sharper edge than キモい.

What do ウザい and グロい mean?

ウザい means "annoying", and グロい means "gory" or "grotesque". They are often listed together with キモい because they are all short, harsh slang adjectives.

しつこくてウザい。 — He's so persistent, it's annoying. (casual, irritated) このアニメはグロいシーンが多おおい。 — This anime has a lot of gory scenes. (casual, a content warning)

グロい is common in anime and game reviews and is closer to a neutral description of content. ウザい, like キモい, is rude when aimed at a person.

Word From Meaning Strength
キモい 気持ち悪きもちわるい gross, creepy strong about people
気持ち悪きもちわるい standard phrase gross; I feel sick neutral to strong
キショい 気色悪きしょくわるい gross (sharper) very strong
ウザい うざったい annoying strong about people
グロい グロテスク gory, grotesque descriptive
キモかわいい キモい + かわいい creepy-cute positive

Beyond the basics

What does キモかわいい mean?

キモかわいい is "creepy-cute": strange-looking but somehow lovable. It is used for odd mascots, weird plush toys and unusual animals, and it is a compliment.

このキャラ、キモかわいい! — This character is creepy-cute! (casual, affectionate)

We cover it with other kinds of cute in cute in Japanese.

How do you say "I don't like it" more gently?

Use 苦手にがて (にがて), "not my thing", or ちょっと無理むり (ちょっとむり), "a bit too much for me". These say the same thing without insulting anyone.

虫むしはちょっと苦手にがてです。 — Bugs aren't really my thing. (polite, gentle) 辛つらいのはちょっと無理むり。 — Spicy food is a bit too much for me. (casual, soft refusal)

苦手にがて is one of the most useful soft words in Japanese; see good at and bad at in Japanese.

How does キモい sound in anime?

It is a classic reaction line, often from a character recoiling from a bug, a pervert, or an overly dramatic friend. Comedy scenes use キモい as a punchline, and the target usually reacts with exaggerated hurt.

近寄ちかよらないで、キモい! — Stay away, you creep! (rough, comedy scene)

This is also why learners hear it so much and why it feels lighter than it is. On screen, it is a gag. In real life, aimed at a real person, it is not.

Common mistakes

  • Saying キモい when you feel sick. Use 気持ち悪きもちわるい about your own body.
  • Calling a person キモい as a joke with people you just met. It can land as a real insult.
  • Using キモい in polite speech. It is slang. In polite settings, use 苦手にがて or ちょっと….
  • Thinking キモかわいい is an insult. It is affectionate.
  • Putting キモい and グロい on the same level. グロい often just describes gory content.

Practice

Try each answer before opening it. Questions 3 and 4 are a pair: the same root, your body versus something else.

1. React casually to a big bug: "This bug is gross!"

Show answer

この虫むし、キモい! — キモい about things is everyday casual speech.

2. What full phrase is キモい short for?

Show answer

気持ち悪きもちわるい — "the feeling is bad", clipped to キモい.

3. You feel nauseous after a boat ride. What do you say?

Show answer

気持ち悪きもちわるい……。 — about your own body, use the full phrase, not キモい.

4. A horror movie was disturbing. Say so casually with the full phrase.

Show answer

あの映画えいが、気持きもち悪わるかった。 — about something else, 気持ち悪きもちわるい means "disturbing, gross". This is the pair to question 3.

5. A strange mascot is weird but lovable. What word fits?

Show answer

キモかわいい — creepy-cute, a compliment.

6. Say politely, "Bugs aren't really my thing."

Show answer

虫むしはちょっと苦手にがてです。 — 苦手にがて is the gentle way to say you dislike something.

7. Which slang means "annoying": ウザい or グロい?

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ウザい — グロい means gory or grotesque.

8. Write a short content warning: "This anime has a lot of gory scenes."

Show answer

このアニメはグロいシーンが多おおい。 — グロい describes gory content.

9. Is お前まえ、キモい a light joke between new acquaintances?

Show answer

No. — about a person, キモい can be deeply hurtful.

10. Refuse spicy food softly and casually.

Show answer

辛つらいのはちょっと無理むり。 — ちょっと無理むり is a soft "that's too much for me".

FAQ

What does kimoi mean? Gross or creepy. It is slang, short for 気持ち悪きもちわるい.

Is キモい a bad word? About things, it is casual slang. About people, it is a harsh insult and can be hurtful.

What is the difference between キモい and 気持ち悪きもちわるい? 気持ち悪きもちわるい can also mean "I feel sick". キモい only means "gross" or "creepy".

What does キモかわいい mean? Creepy-cute, odd-looking but lovable. It is a compliment.

What does キモ mean on its own? A short exclamation, like "ew!" It is even more casual than キモい.

What can I say instead of キモい? 苦手にがて (not my thing), ちょっと無理むり (a bit too much), or 気持ち悪きもちわるい in a neutral tone about things.

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.

キモい	きもい — gross, creepy (slang)
気持ち悪い	きもちわるい — gross; I feel sick
キショい	きしょい — gross (stronger slang)
気色悪い	きしょくわるい — unpleasant, creepy
ウザい	うざい — annoying (slang)
グロい	ぐろい — gory, grotesque
キモかわいい	きもかわいい — creepy-cute
苦手	にがて — not one's thing, weak at
無理	むり — impossible, too much
虫	むし — bug, insect
食感	しょっかん — texture (of food)
吐く	はく — to throw up

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. キモい, かわいい and 怖こわい often arrive together when beginners start describing characters, and キモい is the one I always stop to calibrate, because anime makes it sound much lighter than it is. For practice with feedback, Book a trial lesson · $13, or try the Japanese practice exercises first.

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

More drills like the ones above, plus a timed JLPT-style mock test: Practice · N4 · Read something at this level: JLPT N4 stories with audio

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