As adjectives the difference between unimpeachable and demonstrable
is that unimpeachable is not able to be impeached or reproached while demonstrable is able to be demonstrated.
demonstrable
English
Adjective
(
en adjective)
able to be demonstrated
- It is demonstrable that water extinguishes fire.
Antonyms
* indemonstrable
* undemonstrable
Related terms
* demonstrability
See also
* provable