Here's what rhymes with infinitésimal.
lacrimal Words that almost rhyme with infinitésimal
phenyl venal renal penal adrenal duodenal feeble fetal fecal siecle thiol phial seagull people legal medieval needle lethal sequel beetle diesel regal upheaval feveral steeple weasel weevil beadle varietal beagle enfeeble wheal wheedle decal heedful riyal teasel resole teazel illegal peaceful retrieval genial needful authorial deceitful pineal inositol gleeful inveigle respell cathedral unequal primeval labial notarial coequal laypeople nonlegal nonlethal estradiol octahedral polyhedral bilabial canticle gonorrheal paralegal congenial centripetal tetrahedral requital uncongenial extralegal