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insidious

see definition of insidious

More words related to insidious

sly

adjective. clever, devious

snaky

adjective. devious, sly

sneaking

adjective. sly

subtle

adjective. clever, cunning

treacherous

adjective. dishonest, disloyal

tricky

adjective. deceptive, sly

underhand

adjective. deceitful

wilier

adjective. crafty, clever

wily

adjective. crafty, clever
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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