Synonyms of unkind

Adjective

1. unkind (vs. kind), cutting, edged, stinging, harsh, rough, hurtful, unkindly, unsympathetic, malign, merciless#1, unmerciful

usage: lacking kindness; "a thoughtless and unkind remark"; "the unkindest cut of all"

2. pitiless, unkind, inhumane (vs. humane)

usage: deficient in humane and kindly feelings

Definition and meaning of unkind (Dictionary)