unpublished
//ˌʌnˈpʌblɪʃt//
Adjective
unpublishedCanonical form
1
Not issued in print or made available to the public; remaining in manuscript or private form.
The researcher discovered several unpublished letters in the archive.
2
(Of an author) not having had any work published.
She is an unpublished author who has been writing novels for years.