28 entries under difficultly topic. ×

11
arduously(adverb, easy, badly, severely, vigorously)
9
strenuously(adverb, badly, severely, vigorously, earnestly)
7
difficultly(adverb, easy)
7
onerously(adverb, strenuously)
7
toilsomely(adverb, badly, severely, vigorously, hardly)
4
toughly
3
formidably
3
harshly(adverb, badly, severely, vigorously, hardly)
3
troublesomely
2
complexly
2
roughly
2
severely
2
wearisomely
1
adversely
1
cantankerously
1
complicatedly
1
contrarily
1
demandingly
1
fussily
1
grindingly
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APASmart Define. (2016). laboriously thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/laboriously/thesaurus/synonyms
ChicagoSmart Define. 2016. "laboriously thesaurus" https://smartdefine.org/laboriously/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, laboriously thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/laboriously/thesaurus/synonyms>.
MLASmart Define. "laboriously thesaurus" 19 February 2016. Web. 24 September 2026. <https://smartdefine.org/laboriously/thesaurus/synonyms>