SkyfireDict

insidious   (TTS Sound)

The adj insidious has 3 senses

• insidious -- (beguiling but harmful; "insidious pleasures")


• insidious -- (intended to entrap)


• insidious, pernicious, subtle -- (working or spreading in a hidden and usually injurious way; "glaucoma is an insidious disease"; "a subtle poison")