30 entries under tenaciously topic. ×

11
indefatigably(adverb, vigorously, earnestly, actively, hastily)
6
persistently(adverb, thoroughly, seriously, vigorously, closely)
6
doggedly(adverb, thoroughly, closely, meticulously, resolutely)
6
tirelessly(adverb, resolutely)
5
devotedly(adverb, resolutely)
5
faithfully(adverb, thoroughly, carefully, meticulously, resolutely)
5
fervently(adverb, vigorously, earnestly, actively, hastily)
4
resolutely(adverb, resolutely)
4
tenaciously(adverb, resolutely)
4
unflaggingly
3
determinedly(adverb, resolutely)
3
heartily(adverb, resolutely)
2
boldly(adverb, resolutely)
2
courageously(adverb, resolutely)
2
dauntlessly(adverb, resolutely)
2
decisively(adverb, resolutely)
2
indomitably(adverb, resolutely)
2
pluckily(adverb, resolutely)
2
staunchly(adverb, resolutely)
2
steadfastly
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APASmart Define. (2015). diligently thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/diligently/thesaurus/synonyms
ChicagoSmart Define. 2015. "diligently thesaurus" https://smartdefine.org/diligently/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, diligently thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/diligently/thesaurus/synonyms>.
MLASmart Define. "diligently thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/diligently/thesaurus/synonyms>