insidious

insidious has 5 senses in the JumbleFix dictionary. Letters: 9.

Definitions

• a.. Lying in wait; watching an opportunity to insnare or entrap; deceitful; sly; treacherous; -- said of persons; as, the insidious foe.
• a.. Intended to entrap; characterized by treachery and deceit; as, insidious arts.
• a.. working or spreading in a hidden and usually injurious way; "glaucoma is an insidious disease"; "a subtle poison"
• a.. intended to entrap
• a.. beguiling but harmful; "insidious pleasures"