1.
unfair, unjust, improper, undue
Not fair, reasonable, or appropriate. Often used in legal, business, and social contexts to describe treatment, pricing, or actions that violate norms of fairness.
不当 describes something that falls short of accepted standards of fairness.
Common collocations
- 不当解雇 (unfair dismissal)
- 不当な扱い (unfair treatment)
- 不当な利益 (unfair profit, unjust enrichment)
- 不当な要求 (unreasonable demand)
- 不当に高い (unreasonably expensive)
- 不当表示 (misleading labeling)
Often seen in legal and labor contexts. The opposite is 正当 (just, legitimate).