DICT.TW Dictionary Taiwan

 un·writ·ten /-ˈrɪtṇ/
 (a.)沒有寫的,沒有記錄的,口頭的

 Un·writ·ten a.
 1. Not written; not reduced to writing; oral; as, unwritten agreements.
 2. Containing no writing; blank; as, unwritten paper.
 Unwritten doctrines Theol., such doctrines as have been handed down by word of mouth; oral or traditional doctrines.
 Unwritten law. [Cf. L. lex non scripta.] That part of the law of England and of the United States which is not derived from express legislative enactment, or at least from any enactment now extant and in force as such. This law is now generally contained in the reports of judicial decisions. See Common law, under Common.
 Unwritten laws, such laws as have been handed down by tradition or in song. Such were the laws of the early nations of Europe.
 ◄ ►

 unwritten
      adj 1: based on custom rather than documentation; "an unwritten
             law"; "rites...so ancient that they well might have
             had their unwritten origins in Aurignacian times"-
             J.L.T.C.Spence [ant: written]
      2: using speech rather than writing; "an oral tradition"; "an
         oral agreement" [syn: oral]
      3: said or done without having been planned or written in
         advance; "he made a few ad-lib remarks" [syn: ad-lib, spontaneous]