A vote of no confidence would not be reparable.
Old glassfibre boats are just about infinitely reparable.
Currently, nerve cells are neither reparable nor replaceable.
Protein carbonylation is an irreversible and not reparable reaction.
Note that sometimes the words with predictable stress were borrowed earlier (cf. reparable and repairable).
It is therefore most like self-initiated self-repair where it is preempting another's possible interpretation of the action's timing as reparable.
At the worst, they are ephemeral, and the damage they do is reparable.
But it is a mistake which is reparable.