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