INSIDIOUS


Meaning of INSIDIOUS in English

Something that is ~ is unpleasant or dangerous and develops gradually without being noticed.

The changes are ~, and will not produce a noticeable effect for 15 to 20 years...

ADJ

~ly

Delusions are sometimes ~ly destructive.

ADV: usu ADV adj

Collins COBUILD.      Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) .