It wouldn't be more dispensible.
Unless society or some social group decided to extend their definition to include uniced cakes, then the definition would be unchanged.
In the same way, if society for whatever reason decided to include 'men with brown hair' or something in their definition of batchelor, then 'unmarried' would be dispensible.
( my other username is a porsche , posting shit pictures so you don't have to, Tue 23 Jun 2009, 22:03, archived)