Synonyms of harmful in English:

harmful


See definition of harmful

adjective

1‘the harmful effects of cigarette smoking’

SYNONYMS

damaging, injurious, detrimental, dangerous, deleterious, unfavourable, negative, disadvantageous, unhealthy, unwholesome, hurtful, baleful, wounding, destructive, environmentally unfriendly

noxious, hazardous, poisonous, toxic, deadly, lethal

bad, evil, malign, malignant, malevolent, corrupting, subversive, pernicious

rare baneful, maleficent, malefic

ANTONYMS

beneficial, harmless