virulent Synonyms

acerb caustic deadly blistering bitter venomous sulphurous sulfurous acrid vitriolic acerbic acid poisoned poisonous savage sarcastic polemical rampant rancorous pestilential miasmatic mordacious mordant nasty noxious pernicious pestiferous pestilent scathing septic sharp cancerous unwholesome withering life-threatening viperous viperish vindictive vicious ultraist trenchant transmissible toxicant toxic stinging spiteful transmittable metastatic mephitical deleterious