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See more synonyms for wholehearted on Thesaurus.com
  1. fully or completely sincere, enthusiastic, energetic, etc.; hearty; earnest: a wholehearted attempt to comply.
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Origin of wholehearted

An Americanism dating back to 1830–40; whole + hearted
Related formswhole·heart·ed·ly, adverbwhole·heart·ed·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for wholeheartedness

truthfulness, earnestness, candor, goodwill, probity, veracity, impartiality, seriousness, genuineness, reliability, truth, frankness, trustworthiness, sincerity, reciprocity, adherence, commitment, devotion, allegiance, piety

Examples from the Web for wholeheartedness

Historical Examples of wholeheartedness

  • We all laughed at that, grudgingly at first, then with a touch of wholeheartedness.

    The Night of the Long Knives

    Fritz Reuter Leiber

  • There was a wholeheartedness about Bully Rawson and his doings which left no room for doubt.

  • He is a possessor and advocate of wholeheartedness and sincerity, being charitable to a difference or a fault.

British Dictionary definitions for wholeheartedness


  1. done, acted, given, etc, with total sincerity, enthusiasm, or commitment
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Derived Formswholeheartedly, adverbwholeheartedness, noun
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 wholeheartedness



also whole-hearted, 1840, from whole + hearted. Related: Wholeheartedly.

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Online Etymology Dictionary, © 2010 Douglas Harper