Description : Insidious?
Last Answer : DefinitionAn insidious disease is any disease that comes on slowly, without obvious symptoms at first, so that the person is not aware of it developing.Reviewed ByReview Date: 04/30/2011Linda J. Vorvick, MD, ... Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.