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