おかしい・可笑しいokashii[3]nakadaka (mid-high)

1. i-adjectivefunny; amusing; comical; laughable; ridiculous
   君きみのジョークは何度なんど聞きいてもおかしい。↗

   Your joke is funny no matter how many times I hear it.
2. i-adjectivestrange; odd; funny; peculiar; weird; wrong; unusual; eccentric
   洗濯機せんたくきの調子ちょうしがどこかおかしい。↗

   Something is wrong with the washing machine.
3. i-adjectivewrong; unsuitable; improper; inappropriate; unbecoming
   君きみの基本的きほんてきな理論りろんはおかしいと思おもう。↗

   I think your basic theory is wrong.
4. i-adjectivesuspicious

• Synonym滑稽こっけいWrittenWritten-flavoured word for laughable or absurd behaviour, as in 「滑稽な姿」. 「おかしい」 is the everyday spoken choice and also means odd or off.
• SynonymおかしなCasualPre-noun word used only before nouns, as in 「おかしな人」. Same meaning as 「おかしい」, covering both the funny and the strange senses.
• SynonymユーモラスNeutralLoanword for humorous and witty with a favourable nuance, as in 「ユーモラスな話」. Lacks the strange sense of 「おかしい」.
• SynonymコミカルNeutralLoanword for comical, comedy-like; often describes actions or works. Does not carry the abnormal sense of 「おかしい」.
• Synonym異様いようWrittenWritten word for an eerie, unsettling strangeness, as in 「異様な静けさ」. No hint of funniness.
• Synonym怪奇かいきWrittenWritten word for the eerie and mysterious with a horror tinge, as in 「怪奇小説」. The strangeness of 「おかしい」 has no such sinister feel.
• Synonym奇怪きかいWrittenWritten word for grotesque, suspicious strangeness, as in 「奇怪な事件」. Stronger than the odd sense of 「おかしい」.
• Synonym奇異きいWrittenWritten-flavoured word for oddness that defies the usual, common in 「奇異な目で見る」 and 「奇異に感じる」.
• Synonym奇妙きみょうNeutralNeutral word for mysterious, inexplicable strangeness, as in 「奇妙な偶然」. Only the strange sense; slightly more formal than 「変」.
• Synonym変へんNeutralThe plainest word for strange, as in 「変な音」. Interchangeable with the odd sense of 「おかしい」, but never funny.
• Synonym妙みょうNeutralA hard-to-pin-down strangeness, as in 「妙な話だ」. Also means skilful or excellent; no sense of funny.
• SynonymおもしろおかしいCasualColloquial compound for something both amusing and fun, as in 「面白おかしく話す」. It centres on entertaining people; 「おかしい」 also covers strange or not right.
• Related珍妙ちんみょうWrittenWritten word for quaint and comical; shares both the funny and strange sides of 「おかしい」, as in 「珍妙な格好」.
• Related変わったかわったNeutralMeans unusual or different, in a mild tone, as in 「変わった趣味」. No hint of funny or of something being wrong.
• RelatedめちゃくちゃCasualColloquial for absurd, unreasonable or all mixed up, as in 「めちゃくちゃな要求」; also means extreme. No sense of funny.
• Related風変わりふうがわりNeutralMild word for a little out of the ordinary, as in 「風変わりな店」. No sense of funny.
• RelatedへんてこCasualColloquial for weird-looking or bizarre, with a teasing tone, as in 「へんてこな格好」. Only the strange sense; never funny.
• Related奇態きたいWrittenWritten word for odd and rare; little used today. In daily speech say 「変」 or 「おかしい」.
• RelatedへんてこりんCasualColloquial, more exaggerated than 「変てこ」; describes something utterly weird, as in 「へんてこりんな形」.
• Related奇矯ききょうWrittenWritten word for words and deeds that are eccentric, unlike other people's, as in 「奇矯な言動」. Used mainly of people's conduct.
• Related奇々怪々ききかいかいWrittenFour-character idiom for the height of bizarre strangeness, as in 「奇々怪々な事件」. No sense of funny.
• RelatedけったいCasualKansai dialect for strange or weird, as in 「けったいな人」. Standard Japanese uses 「変」 or 「おかしい」.
• Related妙ちきりんみょうちきりんCasualColloquialism for bizarre and outlandish, with a jocular tone, as in 「妙ちきりんな話」. Only the strange sense.
• Related妙ちくりんみょうちくりんCasualColloquialism synonymous with 「妙ちきりん」; describes oddness with a teasing tone, as in 「妙ちくりんな帽子」.
• Antonym正常せいじょうNeutralAntonym to the abnormal sense of 「おかしい」: working or being in a normal state, as in 「正常に動く」. Rather formal.
• Antonym普通ふつうNeutralAntonym to the abnormal sense of 「おかしい」: ordinary and usual; the everyday default, as in 「普通の人」.

For something funny or strange, 「おかしい」 is the default. To say only that something is funny, use 「滑稽」, 「コミカル」 or 「ユーモラス」; to say only that it is strange, use 「変」 or 「奇妙」. The other words narrow the sense further: some add teasing or dialect colour (「変てこ」, 「けったい」), some are written words with stronger or darker strangeness (「異様」, 「怪奇」, 「奇怪」), and 「変わった」 and 「風変わり」 are mild. The antonyms are 「正常」 and 「普通」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 笑わらいたくなる。おもしろい。滑稽こっけいだ。馬鹿ばからしい。馬鹿馬鹿ばかばかしい。
2. 普通ふつうではない。妙みょうだ。異常いじょうだ。
3. 怪あやしい。不審ふしんだ。変へんだ。
4. つじつまが合あわない。筋違すじちがいだ。まちがっている。不合理ふごうりだ。正ただしくない。
5. （「してもおかしくない」などの形かたちで）することは不自然ふしぜんではない。十分じゅうぶんに可能性かのうせいがある。