Synonyms of virulent

1 Syllable

cruel

2 Syllables

crueler, deadliest, fatal, deadlier, septic, cruelest, toxic, harmful, noxious, lethal, malign, miasmic, poison, rabid, deadly, mad-dog, ultraist, smoking

3 Syllables

pernicious, vipery, mephitic, injurious, hostile, viperish, necrotic, malicious, infectious, toxicant, venomous, poisonous, overboard, resentful, malignant, baneful, rancorous, miasmatic, unhealthy

4 Syllables

insalubrious, pestiferous, unnutritious, destructive, transmittable, infective, mephitical, corybantic, corrosive

5 Syllables

unwholesome