بی خبردیکشنری فارسی به انگلیسیignorant, insensible, unannounced, unaware, oblivious, unconscious, uninformed, unknowing, unmindful, unsuspecting, unwitting
ناگهاندیکشنری فارسی به انگلیسیabrupt, flash, flat, overnight, short, shortly, suddenly, swift, unannounced