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English Lexicon

Pestilential

/ˌpɛs.tɪˈlɛn.ʃəl/
adjectiveCEFR C2 (Proficient)Top #14500 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Relating to or causing infectious pestilence; deadly or pernicious.

    "The swampy region was known for its pestilential vapors that brought fevers to the local population."
  2. 2

    Causing annoyance or nuisance; extremely irritating or obnoxious.

    "He spent the entire afternoon swatting away pestilential mosquitoes during the hike."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Latin 'pestilentia', meaning plague or pestilence, coming from 'pestis' (plague). It entered Middle English via Old French in the late 14th century, initially referring to contagious or fatal epidemic diseases before expanding to denote anything morally corrupting or intensely annoying.

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