Definitions for perniciouspərˈnɪʃ əs

This page provides all possible meanings and translations of the word pernicious

Random House Webster's College Dictionary

per•ni•ciouspərˈnɪʃ əs(adj.)

  1. causing insidious harm or ruin; ruinous:

    a pernicious lie.

  2. Obs. evil; wicked.

Origin of pernicious:

1515–25; < L perniciōsus ruinous =pernici(ēs) ruin (per-per - +-nici-, comb. form of nex death, murder (s. nec-) +-iēs n. suffix) +-ōsus -ous


Princeton's WordNet

  1. baneful, deadly, pernicious, pestilent(adj)

    exceedingly harmful

  2. insidious, pernicious, subtle(adj)

    working or spreading in a hidden and usually injurious way

    "glaucoma is an insidious disease"; "a subtle poison"


  1. pernicious(Adjective)

    Causing much harm in a subtle way.

  2. pernicious(Adjective)

    Causing death or injury; deadly.

Webster Dictionary

  1. Pernicious(adj)

    quick; swift (to burn)

  2. Pernicious(adj)

    having the quality of injuring or killing; destructive; very mischievous; baleful; malicious; wicked


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