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