a : not governed by or acting according to reason <unreasonable people>
b : not conformable to reason : absurd <unreasonable beliefs>
Examples of UNREASONABLE
- I told him that I wouldn't pay unless he sent me a replacement. Am I being unreasonable?
- You are entitled to compensation for unreasonable delays.
First Known Use of UNREASONABLE
Related to UNREASONABLE
- baseless, foundationless, invalid, nonvalid, unfounded, groundless, unsubstantiated, unsupported, unwarranted
- good, hard, just, justified, reasonable, reasoned, substantiated, valid, well-founded, well-grounded
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