Words That Rhyme With "Brightens" :
2 syllables:
biden, buttons, chiton, Clayton's, cottons, cyton, Dayton's, frightens, gluttons, Haydn, heightens, Houghton's, Hutton's, Huygens, items, kittens, knighten, Leiden, Leyden, lichenes, lichens, liden, lightens, likens, mittens, newton's, Patons, patten's, picas, Schleiden, Sidon, statins, Steichen, stipends, sweetens, Tetons, tightens, titans, triton's, whiten, widens
3 syllables:
abidance, enlightens, Formica's, manhattan's, Poseidon, subsidence, Tibetans, vandyken