Here's what rhymes with thyreoiditis.
situs thyroiditis vitas detritus pharyngitis urethritis arthritis hepatitis bronchitis dermatitis nephritis gastritis cholangitis keratitis stomatitis laryngitis meningitis pancreatitis encephalitis pyelonephritis osteoarthritis glomerulonephritis Words that almost rhyme with thyreoiditis
righteous unrighteous sanitise arborvitaes bias pious gyrus tightness typhus taigas virus minus sinus brightness pilots pirates dryness lightness thymus timeless whiteness highness phthisis shyness primus rightness stylus sightless triteness wryness pileups science crisis silence license desirous fibrous giants licence likeness riots childless impious lifeless politeness priceless tyrants cypress obeisance privates guileless uprightness faience hydrous spineless vileness flightless niceness slyness lineups slightness showiness wifeless spinets tininess beefiness crispiness dewiness randiness spryness dopiness daffiness titlists alliance guidance kindness blindness climates defiance triumphs appliance mildness mindless wildness aliveness guiltiness quiets handiness faultiness silents heists shininess playact sandiness braininess cyclopes droopiness pallidness snowiness windups brininess playacts clients reliance migrants anhydrous connivance indictments hydrants unlikeness forthrightness proprietress graininess impoliteness tridents autopilots contriteness compliance assignments contrivance subsidence alignments heterozygous homozygous adenovirus excitements unkindness retirements retrovirus suppliants enticements incitements realignments pseudoscience disquiets reassignments alinements requirements refinements omniscience acquirements neuroscience chastisements misalliance misguidance advertisements concupiscence consignments confinements colorblindness advertizements noncompliance cytomegalovirus