harmless
WordReference English Thesaurus © 2026
Sense: Adjective: who does no harm
Synonyms:
gentle Collocations, tame Collocations, unthreatening, nonthreatening, non-threatening, nonviolent, non-violent, powerless, peaceable, peaceful Collocations, inoffensive
Antonyms:
dangerous Collocations, evil Collocations, devious Collocations, mischievous Collocations, baleful, wicked Collocations, baneful
Sense: Adjective: which does no harm
Synonyms:
safe Collocations, innocuous, not hurtful, mild Collocations, nonmalignant, sound Collocations, benign, nontoxic, non-toxic, hypoallergenic, anodyne
Antonyms:
harmful Collocations, adverse Collocations, damaging, dangerous Collocations, detrimental Collocations, injurious