cruel 2 antonyms and opposites of cruel. Adj — Deliberately causing pain or suffering to others, without mercy. Synonyms for cruel barbarous bowelless brutal compassionless demonic diabolic despiteful diabolical fell incessive inclement inhumane inhuman malicious merciless nasty nonhumane pitiless remorseless rotten ruthless sadistic savage truculent spiteful unbenevolent unbenign unkind unmerciful unpitiful unpitying Antonyms for cruel kindly merciful ← Back to the full definition of cruel
