Webster's Revised Unabridged Dictionary · 1913

Unsight

Unsight , adjective

Doing or done without sight; not seeing or examining. [Colloquial]
For to subscribe, unsight, unseen, To a new church discipline. — Hudibras
There was a great confluence of chapmen, that resorted from every part, with a design to purchase, which they were to do “unsight unseen.” — Spectator
Collocations (1)
Unsight unseen , a colloquial phrase, denoting unseeing unseen, or unseen repeated; as, to buy a thing unsight unseen, that is, without seeing it.