The Collaborative International Dictionary of English v.0.48:

Convenient \Con*ven"ient\ (?; 277), a. [L. conveniens, -entis,
   suitable, p. pr. of convenire to be suitable, to come. See
   Convene, v. i.]
   1. Fit or adapted; suitable; proper; becoming; appropriate.
      [Archaic]
      [1913 Webster]

            Feed me with food convenient for me.  --Prov. xxx.
                                                  8.
      [1913 Webster]

            Neither filthiness, nor foolish talking, nor
            jesting, which are not convenient.    --Eph. v. 4.
      [1913 Webster]

   2. Affording accommodation or advantage; well adapted to use;
      handly; as, a convenient house; convenient implements or
      tools.
      [1913 Webster]

   3. Seasonable; timely; opportune; as, a convenient occasion;
      a convenient season. --Acts xxiv. 25.
      [1913 Webster]

   4. Near at hand; easy of access. [Colloq.]
      [1913 Webster]

            Hereties used to be brought thither, convenient for
            burning.                              --Thackeray.

   Syn: Fit; suitable; proper; adapted; fitted; suited; handly;
        commodious.
        [1913 Webster]

WordNet (r) 3.0 (2006):

convenient
    adj 1: suited to your comfort or purpose or needs; "a convenient
           excuse for not going" [ant: inconvenient]
    2: large and roomy (`convenient' is archaic in this sense); "a
       commodious harbor"; "a commodious building suitable for
       conventions" [syn: commodious, convenient] [ant:
       incommodious]