incontrovertible

adjectives

impossible to deny or disprove
"incontrovertible proof of the defendant's innocence"; "proof positive"; "an irrefutable argument"
incontrovertible, irrefutable, positive
is derived from
incontrovertibleness
is derived from
incontrovertibility
necessarily or demonstrably true
"demonstrable truths"
demonstrable, incontrovertible
is derived from
incontrovertibleness