Synonyms for Roomy (same or very similar meaning)
WordNet sense 1 (an associate who shares a room with you):
roommate, roomieWordNet sense 2 ((of buildings and rooms) having ample space):
spaciousWordNet sense 3 (large and roomy (`convenient' is archaic in this sense)):
commodious, convenientFrom the ODE community, based on WordNetadd/edit