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