Here's what rhymes with slacken.
blacken bracken Words that almost rhyme with slacken
flagon wagon dragon sachem action fraction ration actin ashen flatten flaxen ashcan reaction fashion happen passion hadn barren cabin cannon canon faction famine gallon salmon traction anion baron fasten satin falcon haben admin aspen fatten waxen batten gladden mammon platen sadden talon gammon madden klaxon trashcan adman admen flashgun raglan imagine attraction captain sanction chaplain diffraction mansion refraction assassin canyon inaction bastion canton caption plankton saffron stallion dampen hangman infraction jasmine madmen plantain redaction amnion banyan chanson refashion scansion scallion damson badman badmen taxman gasman refasten taxmen abandon abstraction extraction grandson distraction retraction subtraction prolactin exaction adaption capstan clansmen detraction handgun batsman dispassion landsman overreaction unfasten clansman gravamen triathlon gyrfalcon sandmen expansion interaction transaction compassion contraction battalion craftsman compaction draftsman draughtsman medallion rarefaction reexamine draftsmen stupefaction diapason protraction bandsman malefaction vitrifaction satisfaction companion liquefaction phytoplankton benefaction contraption counteraction petrifaction pentathlon upperclassman rapscallion putrefaction underclassman dissatisfaction