Synonyms: incontrovertible, demonstrable
Definition: necessarily or demonstrably true
Usage: demonstrable truths
Similar words: incontestable, incontestible
Definition: incapable of being contested or disputed
Synonyms: incontrovertible, positive, irrefutable
Definition: impossible to deny or disprove
Usage: incontrovertible proof of the defendant's innocence; proof positive; an irrefutable argument
Similar words: undeniable
Definition: not possible to deny