irrefutable

adjective

Impossible to refute or disprove; incontrovertible.

Not refutable; incapable of being refuted or disproved.

Synonyms See list under irrefragable.

adjective

Incapable of being refuted or disproved; indisputable.

adjective

undeniable; unable to be disproved or refuted

adjective

impossible to deny or disprove