unreleased

adjective2

1. •
   Not released.

   • Fans were soon sharing the band's unreleased songs on the Internet.
2. •
   Of a stop consonant, remaining occluded when spoken.

   • Phonetically, in Malay, initial /t/ and /p/ are never aspirated; only /p, b, t, d, k, g/ occur as final stops and are usually unreleased and unaspirated[.] — 2019