INSIDIOUSLY is 11 letters long. It starts with the letter I and ends with the letter Y
Dictionary definitions:
INSIDIOUSLY:
Dictionary definitions:
INSIDIOUSLY:
Definition: intended to entrap or beguile: an insidious plan. stealthily treacherous or deceitful: an insidious enemy. operating or proceeding in an inconspicuous or seemingly harmless way but actually with grave effect: