oversimplification

verb (used with or without object), o·ver·sim·pli·fied, o·ver·sim·pli·fy·ing.

1. to simplify to the point of error, distortion, or misrepresentation.

verb -fies, -fying or -fied

1. to simplify (something) to the point of distortion or error

n.also over-simpification, 1835, from over- + simplification. v.1908, from over- + simplify. Related: Oversimplified; oversimplifying.