A persons inability to cease being a cunt.
Adjective
1. Unable to suppress leakage and/or physical evacuations of cuntishness;
2. Incapable of retaining the fact they are a cunt.
3. Inadequate self-control & restraint, especially against the urge to be a cunt.
Related: Incuntinence, incuntinency, uncuntrollable
'Some people get really incuntinent when they've had a few too many'
'Have you always been this incuntinent or is this a recent affliction?'