Here's what rhymes with decreasingly.
increasingly unceasingly Words that almost rhyme with decreasingly
pleasingly teasingly deceivingly disbelievingly tantalisingly exceedingly seemingly feelingly fleetingly pleadingly jeeringly screamingly sheepishly heatedly misleadingly appealingly intriguingly revealingly endearingly sweepingly cohesively entreatingly scenically freakishly sneakingly repeatedly secretly peevishly beseechingly fiendishly unfeelingly unseeingly squeamishly vixenishly overweeningly unappealingly strategically obliquity