Insidious

English vocabulary and translations (See all)

Want to improve your English? Try our online English lessons for free.

Definition

insidious: cunning, deceitful, devious, treacherous
adjective

insidiously (developed): astutely, craftily, cunningly, slyly (developed)
adverb

Examples

  • "The rest is an insidious attempt to ruin my reputation."

Still having difficulties with 'Insidious'? Want to improve your English? Try our online English lessons and receive a free level assessment.


Do you have smart way of remembering 'Insidious'? Share it with us!