Sweetened rhymes with:
brightened, buttoned, cottoned, disheartened, enlightened, fattened, flattened, frightened, heartened, heightened, heistand, hestand, hiestand, lightened, montand, predestined, shortened, smartened, straightened, threatened, tightened, unbuttoned, unenlightened
Sweetened sounds like:
saddened, sectioned, sediment, sixteenth, stained, stamand, stamant, stamaty, stand, standa, standout, stant, stanwood, statement, stationed, steamed, stemmed, stennett, stent, stinnett, stinnette, stint, stomata, stoned, student, stunned, stunt, stunted, stymied, sustained, systemat, systemwide