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