[syn: roomy, spacious]
The Collaborative International Dictionary of English v.0.48:
Spacious \Spa"cious\, a. [L. spatiousus: cf. F. spacieux. See
   Space, n.]
   1. Extending far and wide; vast in extent. "A spacious plain
      outstretched in circuit wide." --Milton.
      [1913 Webster]
   2. Inclosing an extended space; having large or ample room;
      not contracted or narrow; capacious; roomy; as, spacious
      bounds; a spacious church; a spacious hall. --
      Spa"cious*ly, adv. -- Spa"cious*ness, n.
      [1913 Webster]
WordNet (r) 3.0 (2006):
spacious
    adj 1: very large in expanse or scope; "a broad lawn"; "the wide
           plains"; "a spacious view"; "spacious skies" [syn:
           broad, spacious, wide]
    2: (of buildings and rooms) having ample space; "a roomy but
       sparsely furnished apartment"; "a spacious ballroom" [syn:
       roomy, spacious]
Moby Thesaurus II by Grady Ward, 1.0:
57 Moby Thesaurus words for "spacious":
   Gargantuan, ample, amplitudinous, astronomical, awesome, big,
   boundless, broad, bulky, capacious, colossal, commodious,
   comprehensive, copious, cosmic, deep, enormous, expansive,
   extended, extending, extensive, far-reaching, full, galactic,
   generous, gigantic, great, huge, immeasurable, immense, infinite,
   king-size, large, mammoth, massive, massy, monster, monstrous,
   monumental, mountainous, outsize, outsized, overgrown, oversized,
   prodigious, roomy, sizable, sizeable, spreading, stupendous,
   titanic, tremendous, vast, voluminous, weighty, wide, widespread