28 entries under difficultly topic. ×

10
laboriously(adverb, easy, badly, severely, vigorously)
9
strenuously(adverb, badly, severely, vigorously, earnestly)
4
difficultly(adverb, hard, easy, laboriously)
4
severely(adverb, painfully)
4
toilsomely(adverb, badly, severely, vigorously, hardly)
4
toughly
4
troublesomely(adverb, painfully)
3
harshly(adverb, badly, severely, vigorously, hardly)
3
onerously
3
oppressively(adverb, painfully)
3
tryingly(adverb, painfully)
2
formidably
2
roughly
2
stressfully
2
tightly
2
trickily
2
wearisomely
1
adversely
1
cantankerously
1
complexly
<12>
11 years ago|4.7k views|share |citing 
APASmart Define. (2015). arduously thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/arduously/thesaurus/synonyms
ChicagoSmart Define. 2015. "arduously thesaurus" https://smartdefine.org/arduously/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, arduously thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/arduously/thesaurus/synonyms>.
MLASmart Define. "arduously thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/arduously/thesaurus/synonyms>