unwrittenadj.

英 ʌn'rɪt(ə)n | 美 ,ʌn'rɪtn

中文adj. 不成文的；口头的；没有记录的

词根词源

unwritten (adj.)mid-14c., from un- (1) "not" + past participle of write (v.). Similar formation in Old English unwriten, Old Norse uritinn.

关键词

unwritten