sight unseen

Etymology
Reportedly first attested 1892

Adjective

 * 1)  Not having seen the object beforehand.

Translations

 * Finnish: näkemätön
 * French:
 * Italian: a scatola chiusa
 * Norwegian:
 * Bokmål: usett
 * Nynorsk: usett
 * Polish: w ciemno, bez oglądania