radically

Etymology

radical + -ly or radix (“root”) + -ally

adv

1. In a radical manner; fundamentally; very.
   two radically different political groups
   The reasons for this growing disconnect are myriad and complex but the situation is exacerbated by the reality that those English players who do smash through our game's "glass ceiling" command radically inflated transfer fees. 20 August 2013, Louise Taylor, The Guardian
2. At the root.
   "Clot" and "clod" are radically the same word.
   This [Algonquian] language [family] is spoken by all the Indians throughout New England. Every tribe, as that of Stockbridge, that of Farmington, that of New London, &c. has a different dialect [i.e. language], but the language [family] is radically the same. 1788, Jonathan Edwards, in a report to the Connecticut Society of Arts and Sciences