Adjective

(-)

Impossible to create.

*{{quote-book, year=1892, author=Henry Drummond, title=Beautiful Thoughts, chapter=, edition= citation

, passage=Matter is uncreatable and indestructible; Nature and man can only form and transform. }}

*{{quote-book, year=1918, author=Claude Fayette Bragdon, title=Architecture and Democracy, chapter=, edition= citation

, passage=We are enabled to see with the penetrating vision of the mathematical insight that no less real and no more real are these fantastic forms of the world of relativity than those supposed to be uncreatable or indestructible in the play of the forces of nature. }}

Adjective

(-)

Not subject to cheating, impossible to cheat (at).

* 2002 , George W. Barlow, The Cichlid Fishes: Nature’s Grand Experiment In Evolution , Da Capo Press, ISBN 978-0-7382-0528-1, page 100:

(SIC) argued, however, that natural selection should favor signals that cannot be cheated.³² Uncheatable signals carry a cost, a handicap.

* 2005 , Song Han, Elizabeth Chang, and Jie Wang, “Attack on Undeniable Partially Blind Signatures”, Andrew Blyth (editor), EC2ND 2005: Proceedings Of The First European Conference on Computer Network Defence, School Of Computing, University of Glamorgan, Wales, UK , Birkhäuser (2006), ISBN 978-1-84628-311-6, page 143,

We show that the signer can disavow any valid signature to the verifier. In other words, we show that the disavowal of their scheme is not uncheatable .