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