Synonyms|73Antonyms|0|Broader|2Narrower|0Related|14

3 entries under idiom topic. ×

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bulldog courage(expression, perseverance)
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indefatigable quality
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tireless determination
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APASmart Define. (2013). indefatigableness thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/indefatigableness/thesaurus/synonyms
ChicagoSmart Define. 2013. "indefatigableness thesaurus" https://smartdefine.org/indefatigableness/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2013, indefatigableness thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/indefatigableness/thesaurus/synonyms>.
MLASmart Define. "indefatigableness thesaurus" 17 June 2013. Web. 27 September 2026. <https://smartdefine.org/indefatigableness/thesaurus/synonyms>