Here's what rhymes with smoothen.
Words that almost rhyme with smoothen
smoothing moving soothing oozing snoozing schmoozing oohing using choosing losing fusing musing roofing loosing sluicing spoofing boozing goofing sleuthing juicing whooshing poohing swooshing goosing woofing schussing vamoosing removing amusing proving inducing cruising bruising perusing seducing adducing proofing grooving educing enthusing unloosing effusing sprucing censusing improving reducing refusing accusing approving abusing diffusing deducing infusing misusing conducing defusing reusing disproven suffusing overusing bemusing chorusing callusing contusing disusing behooving producing confusing excusing disproving reproving fireproofing caucusing soundproofing traducing flameproofing nonplusing introducing disapproving disabusing weatherproofing rustproofing bombproofing reproducing waterproofing transfusing childproofing outproducing reintroducing overproducing bulletproofing burglarproofing newsmen crewmen bruin coonskin interleukin tubulin highfalutin calmodulin tuberculin