Heartened rhymes with:
disheartened, disheartened, smartened, disheartened, shortened, smartened, brightened, buttoned, cottoned, disheartened, enlightened, fattened, flattened, frightened, heightened, heistand, hestand, hiestand, lightened, montand, predestined, shortened, smartened, straightened, sweetened, threatened, tightened, unbuttoned, unenlightened