Dictionary entryCEFR C2adjective

insidious

IPA pronunciation: /ɪnˈsɪd.i.əs/

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Russian meaning

Коварный, скрытно опасный

English definition

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

Example

Cognitive fatigue is an insidious adversary during two-hour examinations.

Collocations

insidious disease
insidious threat
insidious influence

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