unkind (to somebody/something) (to do something) unpleasant or unfriendly; slightly cruel an unkind remark He was never actually unkind to them. It would be unkind to go without him. She never said anything unkind about anyone. opposite kind See related entries: Describing unpleasant traitsExtra examples I don’t think he meant to sound unkind. Perhaps it was a little unkind of me to mention her accident. She can be terribly unkind sometimes.