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