unwritten

Definitions of unwritten
1

adj 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
show more antonyms...

adj using speech rather than writing

Synonyms:
oral
spoken
uttered through the medium of speech or characterized by speech; sometimes used in combination

adj said or done without having been planned or written in advance

Synonyms:
ad-lib, spontaneous
unscripted
not furnished with or using a script

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.