Synonyms for Drear (same or very similar meaning)
WordNet sense 1 (causing dejection):
blue, dark, depressing, dingy, disconsolate, dismal, drab, dreary, gloomy, grim, sorry, dispiriting, dingy
WordNet sense 2 (lacking cheer; depressing):
cheerless, uncheerful
From the ODE community, based on WordNet
add/edit