Synonyms for Downcast (same or very similar meaning)
WordNet sense 1 (being or moving lower in position or less in some value):
downWordNet sense 2 (low in spirits):
blue, depressed, dispirited, downhearted, low, low-spirited, down in the mouthWordNet sense 3 (affected or marked by low spirits):
dejectedFrom the ODE community, based on WordNetadd/edit