insidious

Word Origin & History

1540s, from Middle French insidieux (15c.) or directly from Latin insidiosus "deceitful, cunning, artful," from insidiae (plural) "plot, snare, ambush," from insidere "sit on, occupy," from in- "in" (see in- (2)) + sedere "to sit" (see sedentary). Related: Insidiously; insidiousness.

Example Sentences for insidious

Persuasive is the voice of Vice, That spreads the insidious snare.

The strong man must at all times be alert to the attack of insidious disease.

His delighted vanity found in it the most insidious of compliments, as she had intended.

She put Count Albert on his guard against this insidious enemy.

This petition was an insidious blow at one of the most important of our industries.

From day to day my maid came to me with insidious hints about Alma and my husband.

Self-pity is the surest, yet the most insidious foe to self-poise.

That insidious defacement is seen to be a thing of towns, and not at all a matter of "class."

It was endued with a personality feminine, insidious and persuasive.

This is not the only secret, insidious attempt that has been made to wound my reputation.

insidious

disingenuous

foxy

furtive

lubricious

mischievous

more devious

perfidious

shifty

insidious

More words related to insidious

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devious