千差万別|せんさばんべつsensabanbetsu[1]atamadaka (head-high)

1. na-adjective, no-adjectivean infinite variety of; multifarious; being extremely varied and wide-ranging
   一口ひとくちに英会話えいかいわ教材きょうざいといっても、千差万別せんさばんべつだ。↗

   They all get lumped together as English texts. But in fact these books are extremely varied and wide-ranging.

• Synonym多種多様たしゅたようNeutralNeutral: many and varied kinds, an objective description. 「千差万別」 emphasizes that each one is different.
• Synonym多様性たようせいWrittenWritten/formal noun for diversity, as in 「生物多様性」. 「千差万別」 describes things as all differing.
• SynonymいろいろCasualThe most colloquial 'various', with the widest range of uses. 「千差万別」 is more written and stresses difference.
• Synonym種々しゅじゅWrittenLiterary, old-fashioned way of saying 'various'; used little today — say 「様々」 or 「色々」 instead.
• SynonymまちまちNeutralNeutral: each one different, not uniform, as in 「意見がまちまちだ」. The closest in sense to 「千差万別」.
• Synonym千姿万態せんしばんたいWrittenWritten four-character word stressing variety of shapes and forms; rarely used. 「千差万別」 stresses that kinds are many and all differ.
• Synonym千態万状せんたいばんじょうWrittenWritten four-character word for countless, multifarious forms; rarely used. 「千差万別」 stresses that things differ from one another.
• RelatedバラエティCasualColloquial loanword for variety or diversity; also means a variety show. 「千差万別」 focuses on the differences themselves.
• Related様々さまざまNeutralThe most general word for 'various'. 「千差万別」 emphasizes that kinds are numerous and all differ, defying generalization.
• Related多彩たさいWrittenWritten/formal: richly varied and colourful, with a positive nuance, as in 「多彩な人材」. 「千差万別」 is neutral.
• Related多様たようWrittenWritten/formal: diverse in kind, fairly objective, as in 「多様な価値観」. 「千差万別」 stresses things differing from each other.
• Related多種たしゅWrittenWritten/formal: many kinds, mostly used as a modifier, as in 「多種の商品」. 「千差万別」 stresses the differences.
• Related雑多ざったNeutralNeutral: things of all sorts jumbled together, unsystematic. 「千差万別」 carries no nuance of disorder.
• RelatedくさぐさWrittenLiterary, old-fashioned way of saying 'various'; used little today — say 「様々」 or 「色々」 instead.
• Related千般せんぱんWrittenWritten word meaning all sorts of things; rarely used.
• Related万状ばんじょうWrittenWritten word for all manner of states, seen in 「感慨万状」; rare. 「千差万別」 is far more common.
• Related種々雑多しゅじゅざったNeutralNeutral: all sorts of things mixed together, motley. 「千差万別」 stresses mutual difference without any messy feel.
• Antonym一律いちりつNeutralNeutral antonym: treating everything by one standard, as in 「一律千円」. The opposite of 「千差万別」.
• Antonym画一的かくいつてきWrittenWritten/formal antonym: uniform and lacking individuality, the opposite of the all-different 「千差万別」.

In daily speech 「色々」 and 「様々」 are the default for 'various'; for divided opinions say 「まちまち」. Use 「千差万別」 to stress that kinds are many and each differs, as in 「好みは千差万別だ」; for uniformity use the antonyms 「一律」 or 「画一的」. 「多彩」 adds a colourful, positive nuance; 「多様」「多種多様」「多様性」 are objective diversity terms; 「雑多」「種々雑多」 add a jumbled feel; 「バラエティ」 is a casual loanword. The rest — 「千姿万態」「千態万状」「種々」「千般」「万状」 — are rare written words.

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

1. 種別しゅべつがとても多おおいこと。種々しゅじゅ様々さまざまで、様々さまざまな違ちがいがあること。また、そのさま。千種ちぐさ万よろず様さま。
2. 江戸えど時代じだいの中期ちゅうきから後期こうきにかけての戯作者げさくしゃ。