Lewis Short
(adjective) : immĕmŏrātus (inm-), a, um, in-memoratus
* Unmentioned, not related (poet.): juvat immemorata ferentem Ingenuis oculisque legi manibusque teneri,not yet related, new,Hor. Ep. 1, 19, 33: nec tu jam metris meis immemoratus eris,unsung,Aus. Parent. 20.
Charlton T. Lewis, Charles Short, A Latin Dictionary