Definitions for perniciouspərˈnɪʃ əs
Random House Webster's College Dictionary
per•ni•ciouspərˈnɪʃ əs(adj.)
causing insidious harm or ruin; ruinous:
a pernicious lie.
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
per•ni′cious•ness(n.)
Princeton's WordNet
baneful, deadly, pernicious, pestilent(adj)
exceedingly harmful
insidious, pernicious, subtle(adj)
working or spreading in a hidden and usually injurious way
"glaucoma is an insidious disease"; "a subtle poison"
Wiktionary
pernicious(Adjective)
Causing much harm in a subtle way.
pernicious(Adjective)
Causing death or injury; deadly.
Webster Dictionary
Pernicious(adj)
quick; swift (to burn)
Pernicious(adj)
having the quality of injuring or killing; destructive; very mischievous; baleful; malicious; wicked
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