255 entries under adjective topic. ×

1
connected
1
consecutive
1
consistent
1
continued(strong, firm, determined, steady)
1
cyclical
1
dead set on
1
demoniac(strong, moving, lively, active)
1
dependable
1
eager beaver(expression, strong, firm, determined)
1
even
1
everlasting
1
featureless
1
fireball(strong, firm, determined, steady)
1
flat
1
flintlike
1
forcible(strong, moving, lively, active)
1
full of beans(expression, idiom, active, peppy)
1
gapless
1
go-go(strong, firm, determined, steady)
1
grind(strong, firm, energetic, determined)
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APASmart Define. (2015). indefatigable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/indefatigable/thesaurus/synonyms
ChicagoSmart Define. 2015. "indefatigable thesaurus" https://smartdefine.org/indefatigable/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, indefatigable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/indefatigable/thesaurus/synonyms>.
MLASmart Define. "indefatigable thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/indefatigable/thesaurus/synonyms>