Loading...

American Dictionary of the English Language

Dictionary Search

Insidious


INSID'IOUS, adjective [Latin insidiosus, from insideo, to lie in wait; in and sedeo, to sit.]

1. Properly, lying in wait; hence, watching an opportunity to insnare or entrap; deceitful; sly; treacherous; used of persons.

2. Intended to entrap; as insidious arts.