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