IPA: /ˌoʊvərˈsɪmpəl/
KK: /oʊvərˈsɪmpəl/
Describing something that is excessively simple and does not capture the complexity or details of a situation.
The teacher's oversimple explanation left out many important details.
Oversimple → It is formed from "over-" (meaning excessively) and "simple" (from Latin "simplus", meaning single or uncomplicated). The word "oversimple" means excessively simple or lacking in complexity.
Think of something that is 'excessively' ('over-') 'uncomplicated' ('simple') — that's why oversimple means too simple.
No commonly confused words.