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