INSIDIOUS
Scrabble letter values: I1N1S1I1D2I1O1U1S1 = 10
Definition
- adjective beguiling but harmful.
- adjective intended to entrap.
- adjective working or spreading in a hidden and usually injurious way. — synonyms: pernicious, subtle
Examples
- “insidious pleasures”
- “glaucoma is an insidious disease”
- “a subtle poison”