indemonstrable

About 0.03 uses per million words.

Meaning

1. adjective not able to be demonstrated or proved; unprovable
2. noun An indemonstrable proposition, especially one taken as axiomatic.

Similar words

undemonstrable undemonstratable nondemonstrable unprovable undisprovable unproveable undemonstrated untestable nonprovable anapodeictic

Often followed by

principles and principle first propositions truths premises is axioms

Word family

indemonstrably