a. capable of being revoked; as, a revocable edict or grant; a revocable covenant.
The reason it was done this way was because, as noted before, here and here, the Bush Administration thought that Social Security benefits were a revocable promise.
Sentence in Classic:
Beneath a great tree in the neighborhood fell the German general, Duplat, descended from a French family which fled on the revocation of the Edict of Nantes.
Les Misérables (V2) By Victor Hugo Context
The cannonade of the Isle of Re presaged to him the dragonnades of the Cevennes; the taking of La Rochelle was the preface to the revocation of the Edict of Nantes.
THE THREE MUSKETEERS By Alexandre Dumas Context