7
race(noun, running, pursuit, speeding)
5
footrace
4
endurance contest(noun, expression, idiom)
2
extended
2
classic
1
battle of Marathon(noun, expression, idiom)
1
competition
1
cross-country race(noun, race)
1
dash
1
est
1
extreme
1
fearless
1
grand
1
lap
1
long
1
long-drawn-out
1
long-winded
1
marathon race(expression, idiom)
1
prolonged
1
protracted
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APASmart Define. (2015). marathon thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/marathon/thesaurus/synonyms
ChicagoSmart Define. 2015. "marathon thesaurus" https://smartdefine.org/marathon/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, marathon thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/marathon/thesaurus/synonyms>.
MLASmart Define. "marathon thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/marathon/thesaurus/synonyms>