IPA: /ˌoʊvərɪˈfaɪnmənt/
KK: /oʊvərɪˈfaɪnmənt/
The state of being excessively refined or made more complex than necessary.
The artist's overrefinement of the sculpture made it lose its original charm.
Overrefinement → It is formed from "over-" (meaning excessively) and "refinement" (from Old French *refinament*, meaning the process of making something pure or perfect). The word "overrefinement" means the excessive process of making something overly pure or perfect, often to the point of being impractical or artificial.
Think of 'excessively' ('over-') making something 'pure' or 'perfect' ('refinement') — that's why overrefinement refers to making something too perfect.