Definition of pernicious Pernicious
/pɚnɪˈʃʌs/ - [pernishus] - per•ni•cious
We found 9 definitions of pernicious from 5 different sources.
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What does pernicious mean?
WordNet
Adjective |
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| pernicious - exceedingly harmful | ||
| baneful, deadly, pestilent | ||
| noxious injurious to physical or mental health; "noxious chemical wastes"; "noxious ideas" | ||
| pernicious - working or spreading in a hidden and usually injurious way; "glaucoma is an insidious disease"; "a subtle poison" | ||
| insidious, subtle | ||
| harmful causing or capable of causing harm; "too much sun is harmful to the skin"; "harmful effects of smoking" | ||
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Wiktionary 
Webster DictionaryWebster's Unabridged Dictionary 📘
- pernicious (a.)
Quick; swift (to burn). - pernicious (a.)
Having the quality of injuring or killing; destructive; very mischievous; baleful; malicious; wicked.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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pernicious
Working or spreading in a hidden and usually injurious way. -
pernicious
Exceedingly harmful.
Chambers DictionaryChamber's 20th Century Dictionary 📕
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pernicious
per-nish′us, adj. killing utterly: hurtful: destructive: highly injurious.—adv. Perni′ciously.—n. Perni′ciousness. [Fr.,—L. perniciosus—per, completely, nex, necis, death by violence.]
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