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