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