Source : Webster's Revised Unabridged Dictionary (1913)

Traditional \Tra*di"tion*al\, a. [Cf. F. traditionnel, LL.
   traditionalis.]
   1. Of or pertaining to tradition; derived from tradition;
      communicated from ancestors to descendants by word only;
      transmitted from age to age without writing; as,
      traditional opinions; traditional customs; traditional
      expositions of the Scriptures.

   2. Observant of tradition; attached to old customs;
      old-fashioned. [R.] --Shak.

Source : WordNet®

traditional
     adj 1: consisting of or derived from tradition; "traditional
            history"; "traditional morality" [ant: {nontraditional}]
     2: pertaining to time-honored orthodox doctrines; "the simple
        security of traditional assumptions has vanished"