Pestilent Definition

Causing or likely to cause epidemic disease.
A pestilent swamp.
American Heritage Medicine
Contagious; pestilential.
Webster's New World
Likely to cause death; deadly.
Webster's New World
Dangerous to the security and welfare of society; pernicious.
Webster's New World
Annoying; troublesome.
Webster's New World

Origin of Pestilent

  • Middle English from Old French from Latin pestilēns pestilent- from pestis pestilence pest

    From American Heritage Dictionary of the English Language, 5th Edition

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