I. un ‧ seen 1 /ˌʌnˈsiːn◂/ BrE AmE adjective formal
not noticed or seen:
Raj crept out of the house unseen.
unseen dangers
⇨ sight unseen at ↑ sight 1 (17)
II. un ‧ seen 2 /ʌnˈsiːn/ BrE AmE noun [countable]
British English a piece of writing that you must translate into your own language in an examination