フェアfea

1. na-adjectivefair
   我々われわれは、勝かとうが負まけようがフェアに戦たたかわなければならない。↗

   We have to play fair, whether we win or lose.
2. noun, baseballfair ball
3. nounfair (event)

• Synonym公正こうせいNeutralFairness centred on impartial judgment and handling; leans written. 「フェア」 is the colloquial word for aboveboard play in games and deals.
• Synonym公明正大こうめいせいだいWrittenA four-character idiom for open and upright conduct; written style with a solemn tone, not everyday talk about fair play.
• Synonym公平こうへいNeutralTreating every side alike; more formal than 「フェア」 and typical of talk about distribution and treatment rather than games.
• Synonym公明こうめいWrittenWritten word for fairness that is open and hides nothing; also short for the Komeito party. It is not used as a term for fair play in games.
• Synonym平等びょうどうNeutralEquality — equal status or rights for all. It says nothing about whether the means used are aboveboard, which is 「フェア」's concern.
• Synonym厳正げんせいWrittenStrict, scrupulous fairness, as in 「厳正な審査」; written, stressing firm application of the rules rather than casual fair play.
• Synonym正しいただしいNeutralSimply right or correct, with very wide use; it judges right and wrong in general and is not tied to fairness.
• Synonym正当せいとうNeutralLegitimate and justifiable, as in 「正当防衛」; leans legal, about lawfulness and sound grounds rather than fair play.
• Synonym中正ちゅうせいWrittenImpartiality, holding to neither side; rare and written. It concerns a centred stance, not whether means are aboveboard.
• Synonym至公しこうWrittenUtter, perfect fairness; a rare written word with a solemn ring. In speech you would say 「フェア」 instead.
• Related適正てきせいNeutralAppropriate and reasonable, as in 「適正価格」; stresses being just right for the case, not aboveboard conduct.
• Related適切てきせつNeutralAppropriate in the sense of meeting requirements or fitting well; it does not touch on fairness at all.
• Related妥当だとうNeutralValid or appropriate: a decision or measure that holds up as reasonable. It rates soundness, not whether the means someone used were aboveboard.
• Related客観的きゃっかんてきNeutralObjective — free of personal likes and dislikes. Related to fairness, but from the angle of impartial judgment, not fair play.
• Related合理的ごうりてきNeutralRational and logical, often with an eye to efficiency; it speaks to sound reasoning, not fair competition.
• Related順当じゅんとうNeutralNatural and to be expected, as in 「順当な結果」; stresses that something follows reason, not that play was fair.
• AntonymアンフェアNeutralThe loanword opposite of 「フェア」: unfair, or winning through underhanded tricks.
• Antonym不公平ふこうへいNeutralUnfairness or bias, the direct opposite of 「フェア」; at home in both spoken and written Japanese.

Use 「フェア」 for aboveboard play or deals — 「フェアプレー」 — and for promotional fairs. For impartial handling in formal or written contexts pick 「公正」; for even-handed distribution and treatment, 「公平」. 「平等」 is equal status or rights; 「厳正」 strict application of rules; 「公明正大」, 「公明」, 「中正」 and 「至公」 are written words for upright or impartial conduct. 「適正」, 「適切」, 「妥当」 and the like judge aptness or reasonableness rather than fairness. Opposites: 「アンフェア」, 「不公平」.

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

1. 公正こうせいな、正々せいせい堂々どうどう。
2. 打球だきゅうが定さだめられた場所ばしょに入はいること。
3. 定期ていきの市し、博覧会はくらんかい。