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See more synonyms for enthusiastic on Thesaurus.com
  1. full of or characterized by enthusiasm; ardent: He seems very enthusiastic about his role in the play.
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Origin of enthusiastic

From the Greek word enthousiastikós, dating back to 1595–1605. See enthusiast, -ic
Related formsen·thu·si·as·ti·cal·ly, adverban·ti·en·thu·si·as·tic, adjectivean·ti·en·thu·si·as·ti·cal·ly, adverbhy·per·en·thu·si·as·tic, adjectivehy·per·en·thu·si·as·ti·cal·ly, adverbnon·en·thu·si·as·tic, adjectivenon·en·thu·si·as·ti·cal·ly, adverbo·ver·en·thu·si·as·tic, adjectiveo·ver·en·thu·si·as·ti·cal·ly, adverbpseu·do·en·thu·si·as·tic, adjectivepseu·do·en·thu·si·as·ti·cal·ly, adverbqua·si-en·thu·si·as·tic, adjectivequa·si-en·thu·si·as·ti·cal·ly, adverbun·en·thu·si·as·tic, adjectiveun·en·thu·si·as·ti·cal·ly, adverb


See more synonyms for enthusiastic on Thesaurus.com
eager, fervent, zealous, passionate, vehement, fervid, impassioned.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for overenthusiastic

Contemporary Examples

Historical Examples

  • For some reason or other Ruskin was not overenthusiastic over Amiens.

  • I've been hearing some disquieting reports about some of the overenthusiastic bullyboys on your team.


    Dallas McCord Reynolds

  • Any public relations man was overenthusiastic by nature, in Randolph's estimation.

British Dictionary definitions for overenthusiastic


  1. excessively enthusiastic
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  1. filled with or motivated by enthusiasm; fanatical; keen
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Derived Formsenthusiastically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for overenthusiastic



c.1600, "pertaining to possession by a deity," from Greek enthousiastikos "inspired," from enthousiazein (see enthusiasm). Meaning "pertaining to irrational delusion in religion" is from 1690s. The main modern sense, in reference to feelings or persons, "intensely eager, rapturous," is from late 18c. Related: Enthusiastically.

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Online Etymology Dictionary, © 2010 Douglas Harper