- poisonous
- I(New American Roget's College Thesaurus)II(Roget's IV) modif.Syn. noxious, hurtful, dangerous, pestiferous, baneful, malignant, infective, venomous, virulent, peccant, vicious, corrupt, deleterious, noisome, morbid, morbific, morbiferous, fatal, pestilential, miasmatic, toxic, toxiferous, deadly, destructive, bad; see also harmful .Ant. healthy*, wholesome, nourishing.III(Roget's 3 Superthesaurus) a.toxic, venomous, virulent, carcinogenic, noxious, deadly, lethal, malignant, pernicious, vitriolic, caustic.ANT.: healthy, beneficial, benignIV(Roget's Thesaurus II) adjective 1. Capable of injuring or killing by poison: mephitic, mephitical, poison, toxic, toxicant, venomous, virulent. See HELP. 2. Characterized by intense ill will or spite: black, despiteful, evil, hateful, malevolent, malicious, malign, malignant, mean2, nasty, spiteful, venomous, vicious, wicked. Slang: bitchy. See ATTITUDE.
English dictionary for students. 2013.