YourDictionary

insidiousness

Variant of insidious

adjective

  1. characterized by treachery or slyness; crafty; wily
  2. operating in a slow or not easily apparent manner; more dangerous than seems evident: an insidious disease

Related Forms:

Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.

link/cite print suggestion box