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