Definition of "unbacked" in English

adjective

1. (not comparable) Having no back.

   • an unbacked bench

2. Not supported or backed up (by someone or something).

3. Having no (or few) backers.

   • an unbacked racehorse
   • a largely unbacked fundraising project

4. (obsolete, not comparable) Of an animal: never having been ridden or not accustomed to being ridden; not (currently) being ridden.

   • 1823, Mary Shelley, Valperga, London: G. and W.B. Whittaker, Volume 2, Chapter 10, p. 237, […] having visited his charger which was to be led unbacked to the field, he mounted a black palfrey;

5. (photography, holography) (of a plate) Not having an antihalation backing.