over·​en·​thu·​si·​as·​tic ˌō-vər-in-ˌthü-zē-ˈa-stik How to pronounce overenthusiastic (audio)
 also  -ˌthyü-
: having or showing an excessive degree of enthusiasm : overly enthusiastic
… was minding his own business at a computer conference when an apparently overenthusiastic fan gave him a kind of bear hug around the neck, which wrenched some vertebrae …Ron Rosenbaum and Marissa Martinelli
Indeed, he thinks many in the press and business community may be a little overenthusiastic about how soon many of these new technologies will have an impact.Patricia Panchak
… he made an overenthusiastic lunge from the stage and tore cartilage in his knee.Judith Jacklin Belushi
overenthusiastically adverb
… I played it willingly, throwing myself into it overenthusiastically because I had few prospects and little choice. Evangeline Henry

Word History

First Known Use

1857, in the meaning defined above

Time Traveler
The first known use of overenthusiastic was in 1857

Dictionary Entries Near overenthusiastic

Cite this Entry

“Overenthusiastic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overenthusiastic. Accessed 4 Feb. 2023.

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