Definitions
said or done without having been planned or written in advance
Word origin
From Middle English unwriten, from Old English unwriten, unġewriten (“unwritten”), equivalent to un- + written.
Used in a sentence
“The most important rule is unwritten but not unspoken. It is the rule of pronounceability. Sure, xzyqt looks grand, but how do you say it?”
“It's an unwritten rule that you lock the gate when you leave the swimming pool.”
“unwritten paper”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Not on paper”9 letters
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