Словарь синонимов английского языка - unawares

(adv) 1. unexpectedly, abruptly, by surprise, suddenly, off (one's) guard: We caught the sentry unawares. 2. inadvertently, unconsciously, unintentionally, unknowingly, unwittingly, by mistake, mistakenly, by accident, accidentally, in an unguabded moment: She had betrayed her closest friend unawares.