Apedia

Insidious Adjective Intended Entrap Ensnare Beguile Stealthily Treacherous

Front Insidious (adjective)
Back Intended to entrap, ensnare, or beguile; stealthily treacherous or deceitful.

This word is derived from the Latin insidere, meaning “to sit in or on.” Thus, insidious is used to describe a type of evil that works on the inside—an inside job that is secret, stealthy, and harmful.

Tags: l7

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