ReverseSort
[list]ReverseSort
[list, p]ReverseSort[{c, b, d, a}]
You can specify a binary comparison function:
ReverseSort[{1, 2, 0, 3}, Less]
Using Greater
for the above, reverses the reverse sort:
ReverseSort[{1, 2, 0, 3}, Greater]
See also Sort.