Here's what rhymes with penumbrally.
Words that almost rhyme with penumbrally
company subtly clumsily luckily lustily hungrily huskily incumbency sulkily suddenly accompany custody subtlety musketry uncomfortably unluckily compulsorily deductively wondrously frontally tumultuously husbandry triumphantly gluttony slovenly drunkenly indulgently perfunctorily pungency sumptuously ineluctably puppetry abundantly microscopy reluctantly redundancy exultantly presumptuously consultancy