contestable

Synonyms

challengeable

capable of being challenged

debatable, disputable

capable of being disproved

shakable, shakeable

capable of being weakened

questionable

subject to question

Antonyms:

incontestable, incontestible

incapable of being contested or disputed

demonstrable, incontrovertible

necessarily or demonstrably true

demonstrated

having been demonstrated or verified beyond doubt

inarguable, unarguable

against which no argument can be made

bulletproof, unassailable, unshakable, watertight

without flaws or loopholes

unanswerable

impossible to answer

unquestionable

incapable of being questioned

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