What's the noun for revocableness? Here's the word you're looking for.
revoke
The act of revoking in a game of cards.
A renege; a violation of important rules regarding the play of tricks in trick-taking card games serious enough to render the round invalid.
A violation ranked in seriousness somewhat below overt cheating, with the status of a more minor offense only because, when it happens, it is usually accidental.
“I'm not sure that revocability of free software licences really is a problem.”
“The hallmarks of the Paris Commune were responsibility and revocability.”
“In 1746, an English judge explained the ancient doctrine of revocability as based on the petty jealousy of courts fearing ouster of their jurisdiction.”
“The band also revealed their fifth studio album to be titled Venom and their new bassist was going to be Jamie Mathias, formerly of metal band Revoker.”