Library / English Dictionary

PERNICIOUS

Pronunciation (US):

(GB):

 I. (adjective) 

Sense 1

Meaning:

Working or spreading in a hidden and usually injurious way

Example:

a subtle poison

Synonyms:

insidious; pernicious; subtle

Classified under:

Adjectives

Similar:

harmful (causing or capable of causing harm)

Derivation:

perniciousness (grave harmfulness or deadliness)

Sense 2

Meaning:

Exceedingly harmful

Synonyms:

baneful; deadly; pernicious; pestilent

Classified under:

Adjectives

Similar:

noxious (injurious to physical or mental health)

Derivation:

perniciousness (grave harmfulness or deadliness)

Credits