Here's what rhymes with inifinitesimal.
infinitesimal Words that almost rhyme with inifinitesimal
testicle technical lexical poetical helical indelible identical spherical hysterical heretical metrical vesicle exegetical vesical angelical theoretical electrical evangelical arithmetical biomedical nonsensical unethical academical hemispherical nontechnical extendible hermetical dialectical geometrical symmetrical alphabetical antithetical ecumenical imperceptible obstetrical parenthetical diametrical nonidentical asymmetrical petrochemical unsymmetrical nonelectrical pyrotechnical incomprehensible electrochemical trigonometrical