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Synonyms for pernicious

Adjective

1. baneful, deadly, pernicious, pestilent, noxious (vs. innocuous), harmful
usage: exceedingly harmful
2. insidious, pernicious, subtle, harmful (vs. harmless)
usage: working or spreading in a hidden and usually injurious way; "glaucoma is an insidious disease"; "a subtle poison"
WordNet 2.0 Copyright © 2003 by Princeton University. All rights reserved.

See also: pernicious (Dictionary)

 

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