Antonyms for innocuous
- adjective
Antonyms
- adj. · harmless
- harmful, noxious, hurtful, pernicious, deleterious, toxic, poisonous, mischievous, damaging, beneficial, detrimental, injurious, prejudicial, sullen, inimical, noisome formal, venom, nocuous, nocent, scathand UK, pestilential, lethal, menacing