adv. 25B6; adverb FUNDAMENTALLY, essentially, in essence; firstly, first of all, first and foremost, primarily; at heart, at bottom, au fond; principally, chiefly, above all, most of all, mostly, mainly, on the whole, by and large, substantially; intrinsically, inherently; informal at the end of the day, when all is said and done.
BASICALLY
Meaning of BASICALLY in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012