Defn: Pestilential; noxious; pernicious; mischievous. "Corrupt and pestilent." Milton. "What a pestilent knave is this same!" Shak.
PESTILENTIAL
Pes`ti*len"tial, a. Etym: [Cf. F. pestilentiel.]
1. Having the nature or qualities of a pestilence. "Sends the pestilential vapors." Longfellow.
2. Hence: Mischievous; noxious; pernicious; morally destructive. So pestilential, so infectious a thing is sin. Jer. Taylor.
PESTILENTIALLY
Pes`ti*len"tial*ly, adv.
Defn: Pestilently.
PESTILENTIOUS
Pes`ti*len"tious, a.
Defn: Pestilential. [Obs.]
PESTILENTLY
Pes"ti*lent*ly, adv.
Defn: In a pestilent manner; mischievously; destructively. "Above all measure pestilently noisome." Dr. H. More.