unwritten

adjective

un·​writ·​ten ˌən-ˈri-tᵊn 

1

: not expressed in writing : oral, traditional

an unwritten rule

2

: containing no writing : blank

Synonyms of unwritten

• oral
• verbal
• spoken

Examples of unwritten in a Sentence

They had an unwritten agreement.

an unwritten contract may not be enforceable

Recent Examples on the Web

Despite the rainy day, all three were clad in brown suede fall-ready shoes to complete their formal ensembles, and the familial coordination drew attention to the unwritten dress code of the British monarchy. — Jaden Thompson, Footwear News, 8 Sep. 2026

Most players largely celebrate their own successes, rather than their opponents’ errors, and antics like those supposedly violate the sport’s unwritten behavioral codes. — Matthew Futterman, New York Times, 4 Sep. 2026

The rules of baseball, both written and unwritten, have evolved over time, with customs changing across generations, clubs, competition levels, and countries. — Tushaar Kuthiala, Encyclopedia Britannica, 3 Sep. 2026

As with traveling to any country outside of your own, there are a few unwritten rules for visiting Paris with which savvy tourists should get familiar. — Matt Ortile, Condé Nast Traveler, 31 Aug. 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing unwritten

• unwritten constitution
• unwritten law
• unwritten/unspoken rule

Rhymes for unwritten

• handwritten
• honiton
• rewritten
• typewritten
• bitten
• briton
• chiton
• gittin
• kitten
• mitten
• smitten
• whitten

Kids Definition

unwritten

adjective

un·​writ·​ten ˌən-ˈrit-ᵊn 

ˈən-

1

: not put in writing : oral, traditional

an unwritten law

2

: containing no writing : blank

unwritten pages