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