oversimplification
noun /ˌəʊvəˌsɪmplɪfɪˈkeɪʃn/
/ˌəʊvərˌsɪmplɪfɪˈkeɪʃn/
[countable, usually singular, uncountable]- a description of a situation, a problem, etc. that is too simple and that ignores some of the facts
- This is a gross oversimplification of the facts.