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