WordReference Random House Unabridged Dictionary of American English © 2025
in•de•mon•stra•ble
(in′di mon′strə bəl, in dem′ən-),USA pronunciation adj.
in′de•mon′stra•bil′i•ty, in′de•mon′stra•ble•ness, n.
in′de•mon′stra•bly, adv.
- not demonstrable;
incapable of being demonstrated or proved.
- in-3 + demonstrable 1560–70
in′de•mon′stra•bly, adv.
'indemonstrable' also found in these entries (note: many are not synonyms or translations):