adv. 25B6; adverb CERTAINLY, surely, for sure, unquestionably, without doubt, without question, undoubtedly, indubitably, positively, absolutely; undeniably, unmistakably, plainly, clearly, obviously, patently, palpably, transparently, unequivocally, as sure as eggs is eggs.
DEFINITELY
Meaning of DEFINITELY in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012