Fundamentally

Adverb

 * 1) to the very core of the matter

Synonyms

 * essentially
 * basically

Thesaurus
a outrance, absolutely, all out, at bottom, at heart, at the core, au fond, basically, beyond all bounds, beyond compare, beyond comparison, beyond measure, completely, dead, downright, essentially, extremely, flat out, immeasurably, in essence, in itself, in substance, in the extreme, in the main, incalculably, indefinitely, infinitely, materially, most, per se, perfectly, primarily, purely, radically, substantially, totally, unconditionally, unequivocally, utterly, with a vengeance

Translations

 * French: fondamentalement, foncièrement


 * Spanish: fundamentalmente