Here's what rhymes with termness.
                        
                        
                    
                                firmness  Words that almost rhyme with termness
sternness  dermis  terseness  purpose  purchase  furnace  turnips  dearness  thermos  purlieus  service  surface  nervous  surplus  versus  circus  worthless  alertness  nearness  turrets  hermits  wordless  inertness  perverseness  surplice  shirtless  sourness  circuits  clearness  epidermis  serous  worships  disservice  repurchase  stirrups  dolorous  syrups  kerchiefs  serifs  servants  currents  emergence  merchants  occurrence  divergence  observance  deterrence  interprets  serpents  currants  tuberous  diarists  innervates  resurface  disturbance  recurrence  detergents  resurgence  dexterous  submergence  deterrents  indecorous  malodorous  convergence  concurrence  insurgents  disbursements  multipurpose  inadvertence  reemergence  transference  reimbursements  undercurrents  coinsurance  metallurgists