(idiomatic) not present; missing or lost.

plural of founding member

(film) Misplaced, forgotten, archived, or privately-owned motion picture recordings which document past events and which are subsequently rediscovered and made available for public viewing.

plural of found sound

Any sound that is recorded from the environment without being specially prepared or induced.

simple past tense and past participle of find oneself

Alternative form of well-found

Well maintained and fully stocked and equipped. / Welcome; appreciated.

Recently founded.

Unsubstantiated, not based on fact or evidence.