Source : WordNet®

oversimplified
     adj : unrealistically simple [syn: {simplistic}]

oversimplify
     v 1: simplify to an excessive degree; "Don't oversimplify the
          problem"
     2: make too simple; "Don't oversimplify the instructions"
     [also: {oversimplified}]

oversimplified
     See {oversimplify}