Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “pernicious”

See all translations

pernicious

adjective
 
 
/pəˈnɪʃəs/ formal
very harmfulDamaging and spoilingDestroying and demolishing
Translations of “pernicious”
in Spanish Pernicioso…
in Chinese (Traditional) 極其有害的, 惡性的, 惡劣的…
in Russian пагубный, вредный…
in Turkish çok zararlı, muzır, hınzır…
in Chinese (Simplified) 极其有害的, 恶性的, 恶劣的…
in Polish zgubny…
(Definition of pernicious from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “pernicious” in other dictionaries

Word of the Day

piglet

a baby pig

Word of the Day

I won’t tolerate it! Replacing formal words with phrasal verbs.

by Liz Walter,
April 01, 2015
When you are using a language, it is important to understand if a word is formal or informal, so that you can use it in an appropriate way. You might hear people saying dosh for money, or spud for potato, but they wouldn’t write those words in a formal essay. Similarly, a

Read More 

stackin’ p

March 30, 2015
idiom slang earning a lot of money ‘That’s a very generous present.”Yeah, well, she’s stackin’ p, innit?’

Read More