noxious [adjective]: harmful or injurious; toxic.
Example: Tobacco is a noxious weed that has killed many people.
Related words: noxiously [adverb], noxiousness [noun]
Synonyms: dangerous, deadly, fetid, foul, harmful, injurious, insalubrious, insalutary, noisome, pernicious, pestilential, poisonous, putrid, toxic, unhealthy, unwholesome, virulent
Antonyms: beneficial, healthful, hygienic, salubrious, salutary, sanitary, sterile, wholesome
Tags: GRE
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