fifth is an ordinal number!!!!
Fifth is ordinal.
'Fifth' (5th) is ordinal.
'Fifth' is the ordinal number of the cardinal number 5.
'Fifth' is the ordinal form of 'five'
'Five' is cardinal, 'fifth' is ordinal.
Fifth is Ordinal (tellls the "order" something is in..i.e.first, second, etc.)
Neither, since there are no such words! The correct words are ordinal and cardinal. Fifth is an ordinal.
5th or fifth.