not right or fair according to a set of rules or principles; not treating people equally synonym unjust unfair criticism unfair (on/to somebody) It seems unfair on him to make him pay for everything. It would be unfair not to let you have a choice. They had been given an unfair advantage. measures to prevent unfair competition between member countries Life seems so unfair sometimes. It's so unfair! opposite fair
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adverb She claims to have been unfairly dismissed. The tests discriminate unfairly against older people.
noun [uncountable]See unfair in the Oxford Advanced Learner's Dictionary
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