1
actively intently(expression, vigorously, earnestly, hastily, carefully)
1
acutely(adverb, painfully)
1
adversely(adverb, difficultly)
1
aggravatingly(adverb, painfully)
1
agilely(vigorously, earnestly, actively, hastily, carefully)
1
animatedly(vigorously, earnestly, actively, hastily, carefully)
1
annoyingly(adverb, painfully)
1
ardently(adverb, vigorously, earnestly, actively, hastily)
1
badly(adverb, severely, vigorously, hardly, painfully)
1
bitingly(adverb, painfully)
1
bitterly(adverb, painfully)
1
briskly(vigorously, earnestly, actively, hastily, carefully)
1
burdensomely(adverb, badly, severely, vigorously, hardly)
1
by hand(verb, expression, manually)
1
cantankerously(adverb, difficultly)
1
complexly(adverb, difficultly)
1
complicatedly(adverb, difficultly)
1
contrarily(adverb, difficultly)
1
craggily
1
cruelly(adverb, painfully)
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APASmart Define. (2015). arduously thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/arduously/thesaurus/synonyms
ChicagoSmart Define. 2015. "arduously thesaurus" https://smartdefine.org/arduously/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, arduously thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/arduously/thesaurus/synonyms>.
MLASmart Define. "arduously thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/arduously/thesaurus/synonyms>