Here's what rhymes with nonextendable.
extendable spendable bendable expendable commendable dependable amendable undependable recommendable Words that almost rhyme with nonextendable
quenchable lamentable presentable preventable preventible unquenchable unpreventable tenable terrible sensible parable ostensible bearable extensible weldable spreadable medical flexible amenable credible decimal pedestal untenable attentional defensible legible execrable extensional testable dispensable inedible tentacle wearable breathable pentacle stretchable chemical accessible cerebral dimensional indispensable spectacle vegetable intentional plentiful retinal sectional sensual textual directional insensible seminal unbearable illegible impeccable ineffable sentinel expressible caramel repairable suppressible conventional acceptable clerical exceptional festival incredible respectable susceptible inaccessible perceptible skeptical unacceptable detectable inflexible sceptical segmental correctional detestable impregnable inexpressible polemical unintentional chimerical compressible delectable digestible indefensible obsessional contestable collectible correctable impressible suggestible collectable forgettable perfectible premedical perceptional comestible complexional connectable detectible electable unwearable connectible professional numerical hypothetical intestinal perceptual biochemical comprehensible confessional contemptible unconventional irrepressible regrettable reprehensible trigeminal unforgettable alchemical bidirectional geochemical indigestible inflectional photochemical threedimensional twodimensional concessional processional prophetical paramedical unexceptional conceptional convectional inflexional recessional nonclerical noncollectable congressional heterosexual homosexual receptacle histochemical incompressible incontestable intertextual psychosexual undetectable unprofessional anticlerical nonprofessional insusceptible nonnumerical multidimensional unidirectional intracerebral physicochemical subprofessional paraprofessional semiprofessional alphanumerical gastrointestinal immunohistochemical