overenthusiastic

adjective
over·​en·​thu·​si·​as·​tic | \ ˌō-vər-in-ˌthü-zē-ˈa-stik How to pronounce overenthusiastic (audio) , -en- also -ˌthyü-\

Definition of overenthusiastic

: 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

Other Words from overenthusiastic

overenthusiastically \ ˌō-​vər-​in-​ˌthü-​zē-​ˈa-​sti-​k(ə-​)lē How to pronounce overenthusiastically (audio) , -​en-​ also  -​ˌthyü-​ \ adverb
… I played it willingly, throwing myself into it overenthusiastically because I had few prospects and little choice. — Evangeline Henry

First Known Use of overenthusiastic

1857, in the meaning defined above

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The first known use of overenthusiastic was in 1857

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