Expensively rhymes with:
inexpensively, inexpensively, inexpensively, comprehensively, defensively, extensively, inexpensively, intensively, offensively, comprehensively, defensively, extensively, inexpensively, intensively, offensively
inexpensively, inexpensively, inexpensively, comprehensively, defensively, extensively, inexpensively, intensively, offensively, comprehensively, defensively, extensively, inexpensively, intensively, offensively