Here's what rhymes with pretiousness.
baseness unrighteousness Words that almost rhyme with pretiousness
roughness toughness rashness fulness fungous justice fungus oneness dullness dulness numbness stasis justness lameness alumnus smugness couscous dumbness substance compass duchess muskets buttress lustrous piteous robustness bulbous luckless pumice talus cutlass hummocks tapas erogenous magus pashas ruckus rumpus abundance buckets buttocks colourless sumptuous wondrous bloodless cements couplets puppets repugnance stomachs abruptness cumbrous doublets nuggets bluntness effulgence loveless numinous buffets bumptious covets ductless adjustments reluctance encompass trumpets neuritis hundredths wantonness fistulous incubus pedants resultants agreeableness bibulous rambunctious suitableness judgments circumference consultants indulgence conductance inductance judgements reasonableness remonstrance abutments readjustments druggists discussants sibilants incumbents encumbrance superabundance incumbrance unreasonableness overabundance overindulgence