Unsight /(?)/

Un·sight

Unsight

a.
  1. Doing or done without sight; not seeing or examining. [Colloq.]
    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.

Phrases & Compounds

Unsight unseen
a colloquial phrase, denoting unseeing unseen, or unseen repeated; as, to buy a thing unsight unseen, that is, without seeing it.