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