Here's what rhymes with surrepitiously.
                        
                        
                    
                                speciously  facetiously  Words that almost rhyme with surrepitiously
grievously  zealously  cheekily  deity  legally  speedily  appreciably  ceaselessly  needlessly  peaceably  dreamily  genially  heedlessly  piquancy  seamlessly  drearily  peony  reapply  regally  speechlessly  piquantly  secrecy  decency  illegally  peacefully  decently  fealty  greedily  ingeniously  regency  ideality  realty  serenely  sleepily  egregiously  irredeemably  obscenely  breezily  feasibly  heterogeneously  covetously  heedfully  inappreciably  needfully  sleeplessly  sneakily  creakily  creepily  wheezily  anemically  creamily  recently  obesity  agreeably  supremely  uneasily  unequally  unevenly  aridity  gleefully  leniency  unspeakably  leniently  deceitfully  dubiety  phonemically  believably  greasily  queasily  coequally  squeakily  sleazily  frequency  frequently  coherently  indecency  unbelievably  benignity  naivety  indecently  congenially  conceitedly  conceivably  homogeneity  spontaneity  irretrievably  disagreeably  centripetally  indefeasibly  unrelievedly  conveniently  heterogeneity  infrequently  historicity  unfrequently  crystallinity  inconceivably  infrequency  simultaneity  inconveniently  contemporaneity