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