indemonstrable

Definitions

Not capable of being proven or demonstrated; incapable of being shown to be true by reasoning or evidence.

Lacking the possibility of logical verification or empirical proof.

Examples

The existence of a perfectly objective moral truth is often considered an indemonstrable axiom in philosophical discourse.

He argued that the fundamental nature of consciousness remains an indemonstrable concept within the current framework of physical science.

Synonyms

unprovable unverifiable axiomatic self-evident unsubstantiable

Antonyms

provable demonstrable verifiable substantiable provable by evidence