アンフェアanfea

1. na-adjectiveunfair

• Synonym不正ふせいNeutralBroader than 「アンフェア」: covers rule-breaking, cheating, even illegal acts, as in 「不正行為」. 「アンフェア」 targets practices that are unfair or not aboveboard.
• Synonym不当ふとうNeutralStresses unreasonableness; common in legal and labor contexts, as in 「不当解雇」「不当な要求」. 「アンフェア」 is about unfairness in competition or treatment.
• Synonym不公平ふこうへいNeutralA plain Sino-Japanese word for biased judgment or treatment, as in 「不公平な扱い」. Mostly interchangeable with 「アンフェア」 but plainer in tone.
• Synonym不平等ふびょうどうNeutralPoints to inequality of status, rights or treatment, often of systems and social structures, as 「男女不平等」. 「アンフェア」 usually evaluates a specific practice.
• Related汚いきたないNeutralLiterally 'dirty'; of methods it means sneaky or underhand, as 「やり方が汚い」. Strongly colloquial and indignant, more direct than 「アンフェア」.
• RelatedえこひいきNeutralMeans favoring people you like or feel close to, as 「えこひいきする先生」. 「アンフェア」 covers unfairness in general and is not limited to favoritism.
• RelatedダーティーNeutralLoanword for dirty, immoral or even illegal methods, as 「ダーティーな手段」. 「アンフェア」 only says something is unfair or not aboveboard.
• Related偏頗へんぱWrittenWritten word for favoring one side and treating the other unfairly, as 「偏頗な判断」; rare. In daily speech say 「不公平」 or 「えこひいき」.
• Related失当しっとうWrittenWritten word for inappropriate handling or judgment, as 「失当な処分」; it stresses that a decision was improper. 「アンフェア」 is about unfairness to people or things.
• AntonymフェアNeutralOpposite of 「アンフェア」 in the sense of fair and aboveboard, as 「フェアプレー」. Also means a fair ball in baseball, or a fair/exhibition.

Use 「アンフェア」 for unfair games, competition or treatment. In everyday speech 「不公平」 works just as well. For rule-breaking or fraud say 「不正」, for favoritism 「えこひいき」, for underhand methods 「汚い」 or 「ダーティー」. 「不当」 suits legal and labor contexts, 「不平等」 inequality of status or rights, and 「偏頗」「失当」 are formal written words. 「フェア」 is the antonym.

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

1. 不公平ふこうへいなさま。
2. 公正こうせいでないさま。