unwritten

/ˈʌnˌrɪtn/

/ənˈwrɪtɪn/

Definitions of unwritten

1. adjective

   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”

   synonyms:

   common-law

   based on common law

   antonyms:

   written

   systematically collected and written down

   codified, statute

   enacted by a legislative body
2. adjective

   using speech rather than writing
   synonyms: oral

   spoken

   uttered through the medium of speech or characterized by speech; sometimes used in combination
3. adjective

   said or done without having been planned or written in advance
   synonyms: ad-lib, spontaneous

   unscripted

   not furnished with or using a script