Here's what rhymes with pertinaceously.
pertinaciously tenaciously graciously audaciously spaciously ostentatiously voraciously ungraciously vivaciously fallaciously mendaciously perspicaciously salaciously capaciously efficaciously flirtatiously vexatiously loquaciously disputatiously Words that almost rhyme with pertinaceously
racially famously nakedly facially heinously namelessly patiently fatally papacy courageously shamelessly matronly painlessly capably prenatally shakily glacially insatiably nasally weightily cagily faithlessly weightlessly shapelessly palatially shadily hastily painfully vacancy gaiety impatiently laity latency advantageously belatedly daintily gainfully outrageously shamefully balefully fatefully hazily blamelessly hatefully unshakably ashamedly contagiously elatedly gracelessly tastelessly tastily unshakeably changeably racily wakefully brainlessly incapably faithfully masonry gratefully mistakenly spatially playfully blatantly tastefully vagrancy brazenly crazily unashamedly wastefully cravenly blatancy throatily gracefully disdainfully inescapably interagency tetralogy adjacency flagrantly ungratefully disadvantageously adjacently flagrancy fragrantly unfaithfully unmistakably interchangeably computationally freemasonry distastefully ungracefully salacity complacency complacently disgracefully organizationally organisationally calculatedly complaisantly