Source : Webster's Revised Unabridged Dictionary (1913)

Commodious \Com*mo"di*ous\, a. [LL. commodiosus, fr. L. commodum
   convenience, fr. commodus. See {Commode}.]
   Adapted to its use or purpose, or to wants and necessities;
   serviceable; spacious and convenient; roomy and comfortable;
   as, a commodious house. ``A commodious drab.'' --Shak.
   ``Commodious gold.'' --Pope.

         The haven was not commodious to winter in. --Acts
                                                  xxvii. 12.

   Syn: Convenient; suitable; fit; proper; advantageous;
        serviceable; useful; spacious; comfortable.

Source : WordNet®

commodious
     adj : large and roomy (`convenient' is archaic in this sense); "a
           commodious harbor"; "a commodious building suitable for
           conventions" [syn: {convenient}] [ant: {incommodious}]