overarticulate

verb

over·​ar·​tic·​u·​late ˌō-vər-är-ˈti-kyə-ˌlāt 

overarticulated; overarticulating

transitive + intransitive

: to articulate (a word or sound) to an extreme or excessive degree

The cast has no knack for … the vernacular of lower-class New Englanders; they consistently overarticulate their "ain'ts" …

—J. Kelly Nestruck

When you present, don't be afraid to overarticulate words. What seems overdone to you will sound clear and crisp to your listeners.

—Tora Estep

Word History

First Known Use

1921, in the meaning defined above