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