Synonyms: unwritten, spontaneous, ad-lib
Definition: said or done without having been planned or written in advance
Usage: he made a few ad-lib remarks
Similar words: unscripted
Definition: not furnished with or using a script
Usage: unrehearsed and unscript spot interviews; unscripted talk shows
Definition: using speech rather than writing
Usage: an oral tradition; an oral agreement
Similar words: spoken
Definition: uttered through the medium of speech or characterized by speech; sometimes used in combination
Usage: a spoken message; the spoken language; a soft-spoken person; sharp-spoken
Synonyms: unwritten
Definition: based on custom rather than documentation
Usage: an unwritten law; rites...so ancient that they well might have had their unwritten origins in Aurignacian times- J.L.T.C.Spence