Here's what rhymes with posthumous.

Consider these alternatives

accolades / states compilation / education honours / course honour / full award / called bestowing / going retrospective / objective bestow / no awarded / supported compilations / relations honorary / very accolade / made awards / towards laudatory / story recognitions / conditions belated / related anthologies / qualities awarding / according anthology / quality meritorious / glorious fame / same tribute / contribute accorded / rewarded publication / population received / least recognition / position commendation / operation nominations / relations honorific / specific