Here's what rhymes with thlopental.
gentle dental mental parental rental lentil oriental elemental placental regimental judgmental judgemental fundamental accidental incidental ornamental sentimental supplemental occidental developmental governmental continental instrumental detrimental incremental monumental coincidental excremental environmental experimental transcendental temperamental nonjudgmental unsentimental compartmental subcontinental nongovernmental intergovernmental transcontinental intercontinental Words that almost rhyme with thlopental
temple tremble prudential semble sentential torrential credential resemble residential assemble sequential referential tangential deferential evidential reverential dissemble influential presidential existential exponential preferential providential exemple penitential inessential reassemble unessential circumferential nonessential disassemble consequential inconsequential pencil tensile betel petal central metal devil settle peril ventral kettle pedal rectal septal bevel pebble festal kennel mettle nettle pestle venial beryl fennel peddle utensil cecal fettle vestal bezel chestful level several special essential potential careful vessel dreadful rebel spectral sterile methyl medal projectile acetyl eventful meddle mesial resentful restful revel treble vengeful wrestle bestial erectile faecal feral prayerful pubertal sessile trestle nestle resettle speckle mescal shekel treadle heckle pretzel zestful headstall differential helpful especial respectful healthful stressful colorectal dimethyl fretful imperil revengeful dialectal prehensile unsettle bedevil bipedal freckle suspenseful teakettle embezzle dishevel successful epithelial ancestral orchestral forgetful inferential uneventful palpebral regretful traversal gunmetal nonmetal shovelful overcareful celestial confidential endothelial disrespectful neglectful tocopherol unhelpful distressful primaeval unhealthful unsuccessful departmental experiential multilevel quintessential nonresidential quadrupedal cockleshell nondepartmental interdepartmental