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