均一|きんいつkin'itsu[0]heiban (flat)

1. na-adjective, no-adjectiveuniformity; equality

• Synonym一様いちようNeutralMeans 'the same' or 'even', as in 「一様な色」 or 「一様ではない」; 「均一」 focuses on prices or quality being set to one standard.
• Synonym一律いちりつNeutral'Across the board'; stresses treating everything alike under one rule, as in 「一律千円」.
• Synonym画一かくいつNeutralImplies enforced uniformity and often a negative sense of lacking individuality; 「均一」 is more neutral.
• Synonym均質きんしつWrittenWritten/formal prose; even texture or quality, mainly for materials and technology, as in 「均質な素材」; not used of prices.
• Synonym同質どうしつWrittenWritten and academic; several things sharing the same nature or quality, while 「均一」 centers on unified prices or quantities.
• Synonym均等きんとうNeutralEven distribution with an emphasis on fairness, as in 「機会均等」.
• Synonym画一的かくいつてきNeutralThe adjectival form of 「画一」, with a pejorative 'cookie-cutter' nuance, as in 「画一的な教育」.
• Synonym同質的どうしつてきWrittenWritten/formal; 'homogeneous' — in sociology often describes members with similar backgrounds.
• Synonym等質とうしつWrittenWritten/formal and rare even in academic use; stresses equal quality or nature.
• Related同じおなじNeutralThe everyday, all-purpose word for 'the same'; it does not imply a unified standard.
• Related同様どうようNeutralStresses cases being similar or alike, as in 「同様の事件」.
• Related同一どういつNeutral'Identical' or 'one and the same', stressing complete sameness, as in 「同一人物」.
• RelatedフラットNeutralColloquial loanword: flat with no ups and downs, or an exact figure, as in 「フラット料金」 and 「10秒フラット」.
• RelatedまんべんなくNeutralAn adverb for something reaching everywhere evenly, as in 「まんべんなく塗る」.
• Antonym多様たようNeutralNeutral antonym: diverse or varied — the opposite of uniform 「均一」.
• Antonym不均一ふきんいつWrittenWritten/formal antonym: unevenness, lack of uniformity.

Choose 「均一」 when prices, quality or thickness are unified to a single standard, as in 「百円均一」 and 「均一料金」. For across-the-board treatment say 「一律」; for 'the same' in general 「一様」; for even texture 「均質」; for fair distribution 「均等」. The antonyms are 「不均一」 and 「多様」.

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

1. 何なんかの数量すうりょうや程度ていどに差さがなく一様いちようであること。