奇妙|きみょうkimyou[1]atamadaka (head-high)

1. na-adjective, nounstrange; odd; peculiar; queer; curious
   これはとても奇妙きみょうな手紙てがみです。↗

   This is a very strange letter.

• Synonym風変わりふうがわりNeutralSuggests being different from the norm, a bit quirky; often describes the style of people or things, without the mysterious air of 「奇妙」.
• SynonymおかしいNeutralCovers both something strange or not right and something funny; 「奇妙」 carries no comic sense and is a touch more formal.
• Synonym奇怪きかいNeutralSuggests something bizarre with a suspicious or eerie feel, as in 「奇怪な事件」; more negative in tone than 「奇妙」.
• Synonym妙みょうNeutralPoints to something odd or vaguely off, as in 「妙な音」; it also means ingenious or skillful. Often interchangeable with 「奇妙」.
• Synonym異様いようNeutralFor what is strikingly out of the ordinary — appearances, degrees, atmospheres, as in 「異様な盛り上がり」; stresses abnormality more than 「奇妙」.
• Synonym変へんNeutralThe most common everyday word for something strange or not right; 「奇妙」 is slightly more literary and carries a sense of mystery.
• Synonym変わったかわったNeutralUsed only before nouns; means unusual or out of the ordinary, in a good or bad sense; 「奇妙」 stresses a strangeness hard to pin down.
• Synonym不思議ふしぎNeutralFor what is inexplicable or beyond explanation, tinged with wonder; 「奇妙」 instead carries a sense of oddness.
• Synonym珍妙ちんみょうNeutralOdd and comical at once — used of dress, speech or ways of putting things; 「奇妙」 has no comic flavor.
• Synonym異常いじょうNeutralMeans abnormal or not normal, an objective judgment; 「奇妙」 carries a subjective sense of the inexplicable.
• Synonym奇異きいWrittenWritten word for the odd and grotesque, used mainly in prose; in speech prefer 「奇妙」 or 「変」.
• Synonym怪奇かいきWrittenSuggests the eerie and frightening, typical of ghost stories and horror fiction; 「奇妙」 is not necessarily scary.
• SynonymへんてこCasualColloquial. Suggests something bizarre-looking or outlandish, often comically so; 「奇妙」 is more neutral and carries a sense of wonder.
• Synonym奇態きたいWrittenWritten style and rare; describes an odd, curious look. In everyday speech 「奇妙」 or 「変」 is enough.
• SynonymへんてこりんCasualColloquial, a stronger version of 「変てこ」 with a playful, teasing feel; use 「奇妙」 on formal occasions.
• Synonym奇矯ききょうWrittenWritten word for eccentric conduct or speech that departs from the norm, mostly about people; 「奇妙」 also covers things and phenomena.
• Synonym妙ちくりんみょうちくりんCasualColloquial for something weird or offbeat, with a comical, slightly scornful color; in written prose say 「奇妙」.
• SynonymけったいCasualWritten 「怪体」 it is Kansai dialect for odd or weird; written 「結滞」 it means an intermittent pulse, unrelated to 「奇妙」.
• Synonym妙ちきりんみょうちきりんCasualColloquial, synonymous with 「妙ちくりん」; describes something weird with a teasing tone; in written prose say 「奇妙」.
• Synonym奇々怪々ききかいかいWrittenA four-character expression with an exaggerated tone for the utterly bizarre; far stronger in degree than 「奇妙」.
• Synonym珍奇ちんきWrittenWritten word stressing rarity, as in rare and curious animals; 「奇妙」 is about being odd rather than rare.
• SynonymへんちくりんCasualColloquial for something weird or offbeat, close to 「変てこりん」; say 「奇妙」 on formal occasions.
• Related新奇しんきWrittenWritten word meaning novel and original, stressing freshness; 「奇妙」 stresses oddness, with no hint of newness.
• Related突飛とっぴNeutralFor ideas or behavior that are startling, wild or over the top; 「奇妙」 focuses on the odd quality of the thing itself.
• Antonym普通ふつうNeutralThe everyday word for normal, ordinary, unremarkable — the direct opposite of 「奇妙」.
• Antonym平凡へいぼんNeutralMeans plain and unexceptional, with nothing special about it; contrasts with the oddness of 「奇妙」.

Use 「奇妙」 for a strange, slightly wondrous quality you cannot quite explain. In everyday talk 「変」 is the default; for the inexplicable say 「不思議」; for something eerie or sinister 「怪奇」 or 「奇怪」; for merely distinctive, quirky people or things 「風変わり」. Colloquial words like 「変てこ」「妙ちくりん」 add a comic, teasing tone, while written options such as 「奇異」「奇態」 suit prose. The opposites are 「普通」 and 「平凡」.

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

1. 不思議ふしぎに思おもわれる。
2. 通常つうじょうとは異ことなり、怪あやしい。