Thesaurus
harmful
Synonyms and Antonyms of harmful
- DDT has been proven to be extremely harmful to the environment
contagious, deadly, infectious, infective, pestiferous, pestilent, pestilential, poisonous, venomous
insidious, menacing, ominous, sinister, threatening
hazardous, imperiling (or imperilling), jeopardizing, parlous, perilous, risky, unsafe, unsound
Learn More about harmful
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Dictionary: Definition of harmful Spanish Central: Translation of harmful Nglish: Translation of harmful for Spanish speakers Britannica English: Translation of harmful for Arabic speakers
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