unseen

adjective

1. not seen; unperceived; unobserved; invisible.
2. recognized or comprehended without prior study, as a written text or musical score.

adjective

1. not observed or perceived; invisible
2. (of passages of writing) not previously seen or prepared

noun

3. mainly British a passage, not previously seen, that is presented to students for translation

adj.early 13c., from un- (1) “not” + seen. Cf. Old English ungesewen, Middle Dutch ongesien, Dutch ongezien, Old High German ungesëhan, German ungesehen, Old Norse usenn. see sight unseen.