The Collaborative International Dictionary of English v.0.48:
Roomy \Room"y\, a. Having ample room; spacious; large; as, a roomy mansion; a roomy deck. --Dryden. [1913 Webster]WordNet (r) 3.0 (2006):
roomy adj 1: (of buildings and rooms) having ample space; "a roomy but sparsely furnished apartment"; "a spacious ballroom" [syn: roomy, spacious] n 1: an associate who shares a room with you [syn: roommate, roomie, roomy]