Downcast rhymes with:
amcast, broadcast, comcast, forecast, newscast, outcast, overcast, polycast, qualcast, rebroadcast, simulcast, telecast, triplecast, typecast
Downcast sounds like:
damaged, daminozide, danced, danstett, dehumanized, demonized, denounced, densest, density, dienst, diminished, donizetti, doomsday, downside, downsized, downstate, dunked, dunst, dynasty