Impressively rhymes with:
aggressively, progressively, aggressively, excessively, obsessively, progressively, successively, aggressively, cohesively, comprehensively, compulsively, conclusively, decisively, defensively, derisively, effusively, excessively, exclusively, expensively, explosively, extensively, impassively, impulsively, inconclusively, inexpensively, intensively, massively, obsessively, offensively, passively, persuasively, progressively, reflexively, successively