Antonyms of adj incontrovertible

2 senses of incontrovertible

Sense 1
incontrovertible, irrefutable, positive -- (impossible to deny or disprove; "incontrovertible proof of the defendant's innocence"; "proof positive"; "an irrefutable argument")

INDIRECT (VIA undeniable) -> deniable -- (capable of being denied or contradicted)

Sense 2
demonstrable, incontrovertible -- (necessarily or demonstrably true; "demonstrable truths")

INDIRECT (VIA incontestable) -> contestable -- (capable of being contested)

Similarity of adj incontrovertible

2 senses of incontrovertible

Sense 1
incontrovertible, irrefutable, positive -- (impossible to deny or disprove; "incontrovertible proof of the defendant's innocence"; "proof positive"; "an irrefutable argument")
       => undeniable (vs. deniable) -- (not possible to deny)

Sense 2
demonstrable, incontrovertible -- (necessarily or demonstrably true; "demonstrable truths")
       => incontestable (vs. contestable), incontestible -- (incapable of being contested or disputed)