Synonyms|140Antonyms|32|Broader|0Narrower|0Related|72
2
tenaciously(adverb, resolutely, tenaciously)
2
toughly(adverb, resolutely, tenaciously)
2
truly(adverb, resolutely, tenaciously)
2
unceasingly(adverb, continuously)
2
untiringly
2
vigorously(adverb, earnestly, actively, hastily, carefully)
1
actively intently(expression, vigorously, earnestly, hastily, carefully)
1
agilely(vigorously, earnestly, actively, hastily, carefully)
1
animatedly(vigorously, earnestly, actively, hastily, carefully)
1
ardently(adverb, vigorously, earnestly, actively, hastily)
1
bravely(adverb, tenaciously)
1
briskly(vigorously, earnestly, actively, hastily, carefully)
1
busily(adverb, actively, intently)
1
carefully(vigorously, earnestly, actively, hastily, energetically)
1
coherently(adverb, continuously)
1
conscientously(adverb, good working)
1
consecutively(adverb, continuously)
1
consistently(adverb, continuously)
1
continually(adverb, continuously)
1
cyclically(adverb, continuously)
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ChicagoSmart Define. 2016. "indefatigably thesaurus" https://smartdefine.org/indefatigably/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, indefatigably thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/indefatigably/thesaurus/synonyms>.
MLASmart Define. "indefatigably thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/indefatigably/thesaurus/synonyms>