/ ˌʌnˈkaɪnd; NAmE / adjective
unkind (to sb/sth) (to do sth) unpleasant or unfriendly; slightly cruel :
an unkind remark
He was never actually unkind to them.
It would be unkind to go without him.
OPP kind
► un·kind·ly adverb :
'That's your problem,' she remarked unkindly.
► un·kind·ness noun [ U ]