20 entries under harshly topic. ×

10
laboriously(adverb, easy, badly, severely, vigorously)
7
hardly(adverb, badly, severely, vigorously, extremely)
6
hard(adverb, easy, badly, extremely, hardly)
4
toilsomely(adverb, badly, severely, vigorously, hardly)
3
awkwardly(adverb, badly, severely, vigorously, hardly)
3
gruelingly(adverb, badly, severely, vigorously, hardly)
3
with difficulty(expression, idiom, adverb, badly, severely)
2
agonizingly(adverb, badly, severely, vigorously, hardly)
2
carefully(adverb, badly, severely, vigorously, earnestly)
2
distressingly(adverb, badly, severely, vigorously, hardly)
2
inconveniently(adverb, badly, severely, vigorously, hardly)
1
badly(adverb, severely, vigorously, hardly, painfully)
1
burdensomely(adverb, badly, severely, vigorously, hardly)
1
cumbersomely(adverb, badly, severely, vigorously, hardly)
1
cumbrously(adverb, badly, severely, vigorously, hardly)
1
exhaustingly(adverb, badly, severely, vigorously, hardly)
1
ponderously(adverb, badly, severely, vigorously, hardly)
1
tiredly(adverb, badly, severely, vigorously, hardly)
1
unwieldily(adverb, badly, severely, vigorously, hardly)
1
with great effort(expression, idiom, adverb, badly, severely)
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APASmart Define. (2015). arduously thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/arduously/thesaurus/synonyms
ChicagoSmart Define. 2015. "arduously thesaurus" https://smartdefine.org/arduously/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, arduously thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/arduously/thesaurus/synonyms>.
MLASmart Define. "arduously thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/arduously/thesaurus/synonyms>