INSIDIOUS MEANING IN ENGLISH

• Insidious Definition & Synonyms

  1. (a.) Lying in wait; watching an opportunity to insnare or entrap; deceitful; sly; treacherous; -- said of persons; as, the insidious foe.
  2. (a.) Intended to entrap; characterized by treachery and deceit; as, insidious arts.


Synonyms:
Pernicious, Subtle,

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