Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun virulency

2 senses of virulency

Sense 1
virulence, virulency -- (extreme harmfulness (as the capacity of a microorganism to cause disease); "the virulence of the plague")
       => harmfulness, injuriousness -- (destructiveness that causes harm or injury)

Sense 2
virulence, virulency -- (extreme hostility; "the virulence of the malicious old man")
       => hostility, ill will -- (a hostile (very unfriendly) disposition; "he could not conceal his hostility")