adj. 25B6; adjective
a comfortless house : GLOOMY, dreary, dismal, bleak, grim, sombre; joyless, cheerless, depressing, disheartening, dispiriting, unwelcoming, uninviting; austere, spartan, institutional.
he left her comfortless : MISERABLE, heartbroken, grief-stricken, unhappy, sad, distressed, desolate, devastated, inconsolable, disconsolate, downcast, downhearted, dejected, cheerless, depressed, melancholy, gloomy, glum; informal blue, down in the mouth, down in the dumps.
cosy, happy.