Here's what rhymes with happened.
Words that almost rhyme with happened
saddened fattened flattened maddened imagined patent pageant gladdened combatant fashioned fastened acid rapid valid arid salad sampled annulled avid slackened dampened dappled rationed shackled aphid captioned added acted examined managed handed handled challenged damaged averaged ballad ragged sanctioned angled baffled blackened scaffold tackled channeled dazzled pallid saddled grappled paneled ambled barreled unfastened abandoned adapted landed lasted traveled travelled canceled cancelled candid impassioned patted placid rattled tangled trampled bandaged battled chatted mangled padded paddled slanted crackled dangled gambled hazarded spangled babbled dabbled enameled mantled masted rambled rankled straggled granted planted enacted reacted stranded blasted scrambled languid strangled undamaged antacid reexamined straddled unraveled unravelled demanded attracted commanded expanded dismantled entangled supplanted refracted unexampled diffracted embattled bedraggled untrammeled untrammelled extracted distracted interacted retracted contrasted disentangled