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