Antonyms of adj avirulent

1 sense of avirulent

Sense 1
avirulent (vs. virulent) -- (not virulent; unable to produce disease)

virulent (vs. avirulent) -- (infectious; having the ability to cause disease)
        => highly infective -- ((of a microorganism) extremely infective; "a highly infective organism")
        => deadly -- ((of a disease) having a rapid course and violent effect)

Similarity of adj avirulent

1 sense of avirulent

Sense 1
avirulent (vs. virulent) -- (not virulent; unable to produce disease)