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