a. [ L. pestilens, -entis, fr. pestis pest: cf. F. pestilent. ] Pestilential; noxious; pernicious; mischievous. “Corrupt and pestilent.” Milton. “What a pestilent knave is this same!” Shak. [ 1913 Webster ]
a. [ Cf. F. pestilentiel. ]
So pestilential, so infectious a thing is sin. Jer. Taylor. [ 1913 Webster ]
adv. Pestilently. [ 1913 Webster ]
a. Pestilential. [ Obs. ] [ 1913 Webster ]
adv. In a pestilent manner; mischievously; destructively. “Above all measure pestilently noisome.” Dr. H. More. [ 1913 Webster ]
n. The quality of being pestilent. [ 1913 Webster ]