unwritten

Word parts

un- + written

Adjective

Positive unwritten

Comparative none

Superlative none

1. An unwritten rule or understanding is one that is generally known or understood without being stated explicitly.
   • Antonyms: stated and codified

   It's an unwritten rule that you lock the gate when you leave the swimming pool.

   There was an unwritten agreement between them.

2. An unwritten language is one which is not usually written down, usually because it has no writing system.
   • Antonyms: written and oral

   Svan is a largely unwritten language many scholars believe predates Georgian.

3. An unwritten paper, article, or book, is one for which somebody has an idea but which has not yet been written.

   I'm afraid we'll never see the last book in the series, which is still unwritten.