That can be reformed.

The change of something that is defective, broken, inefficient or otherwise negative, in order to correct or improve it

(transitive) To put into a new and improved form or condition; to restore to a former good state, or bring from bad to good; to change from worse to better

One who reforms, or who works for reform. / (historical, Christianity) One who was involved in the Reformation.

An improvement (or an intended improvement) in the existing form or condition of institutions or practices, etc.; intended to make a striking change for the better in social, political or religious affairs or in the conduct of persons or operation of organizations.

plural of reform

Third-person singular simple present indicative form of reform

a political movement/party

Of Reform Judaism, its tenets, or its adherents.

present participle of reform