Here's what rhymes with postfunctional.
functional junctional dysfunctional nonfunctional Words that almost rhyme with postfunctional
instructional subtotal multiple deductible culpable lovable constructional gullible loveable touchable adjustable refundable clubbable untouchable ineluctable unlovable inculpable uncrushable conductible combustible nonrefundable incombustible noncombustible