[ pes-tl-uh nt ]
/ ˈpɛs tl ənt /


producing or tending to produce infectious or contagious, often epidemic, disease; pestilential.
destructive to life; deadly; poisonous.
injurious to peace, morals, etc.; pernicious.
troublesome, annoying, or mischievous.

Origin of pestilent

1350–1400; Middle English < Latin pestilent- (stem of pestilēns) unhealthy, noxious, alteration of pestilentus, equivalent to pesti- (stem of pestis) pest + -lentus -lent

OTHER WORDS FROM pestilent Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for pestilent

British Dictionary definitions for pestilent

/ (ˈpɛstɪlənt) /


annoying; irritating
highly destructive morally or physically; pernicious
infected with or likely to cause epidemic or infectious disease

Derived forms of pestilent

pestilently, adverb

Word Origin for pestilent

C15: from Latin pestilens unwholesome, from pestis plague
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012