Synonyms|186Antonyms|0|Broader|12Narrower|1Related|55
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course
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elevated
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eminent
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endless
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endurance run(noun, race)
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enterprise
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everlasting
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exacting
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exalted
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family
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foot-race
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grim
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hike
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horse-race
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intense
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kin
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labor
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lineage
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lofty
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long-distance race
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APASmart Define. (2015). marathon thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/marathon/thesaurus/synonyms
ChicagoSmart Define. 2015. "marathon thesaurus" https://smartdefine.org/marathon/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, marathon thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/marathon/thesaurus/synonyms>.
MLASmart Define. "marathon thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/marathon/thesaurus/synonyms>