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