insidious

• يصف شيئًا ضارًا أو خطيرًا أو ماكرًا بشكل خفي، ينتشر تدريجيًا دون أن يُلاحظ.

Describes something that is subtly harmful, dangerous, or deceitful, often spreading gradually without being noticed.

1. Subtly harmfulC1formal

   Proceeding in a gradual, subtle way but with harmful effects.

   خبيث الأثر

   • The insidious disease spread without any early symptoms.
   • Prejudice can have an insidious effect on society.
   • The insidious influence of propaganda eroded public trust.

   المرادفاتcorrosivedeceptiveperniciousstealthysubtletreacherousunderhanded

   الأضدادblatantdirectflagrantobviousovert

2. Treacherous or deceitfulC1formal

   Intended to entrap or deceive in a cunning way.

   ماكر خداع

   • The insidious plot was designed to overthrow the government.
   • He used insidious tactics to manipulate his colleagues.
   • The insidious nature of the scheme made it hard to detect.

   المرادفاتcraftycunningdeceitfulguilefulslysubtletreacherousunderhandedwily

   الأضدادcandidforthrightguilelesshonestopenstraightforward