Synonyms of pestilent

Adjective

1. baneful, deadly, pernicious, pestilent, noxious (vs. innocuous)

usage: exceedingly harmful

2. pestilent, pestilential, pestiferous, plaguey, epidemic (vs. endemic) (vs. ecdemic)

usage: likely to spread and cause an epidemic disease; "a pestilential malignancy in the air"- Jonathan Swift; "plaguey fevers"

Definition and meaning of pestilent (Dictionary)