Here's what rhymes with vitiatingly.
gratingly nauseatingly hesitatingly fascinatingly devastatingly irritatingly unhesitatingly excruciatingly exasperatingly humiliatingly infuriatingly ingratiatingly aggravatingly invigoratingly titillatingly deprecatingly penetratingly illuminatingly accommodatingly calculatingly intimidatingly Words that almost rhyme with vitiatingly
ragingly engagingly scathingly basically amazingly creatively rakishly unfailingly appreciatively evasively piratically jadedly persuasively animatedly pervasively unavailingly imitatively abrasively authoritatively meditatively exaggeratedly legislatively prosaically entertainingly exasperatedly qualitatively collaboratively lackadaisically algebraically uncomplainingly complicatedly administratively manipulatively