28 entries under difficultly topic. ×

13
harshly(adverb, badly, vigorously, strictly, painfully)
8
roughly(adverb, fast, badly, sprightly, intensely)
5
onerously
5
oppressively(adverb, painfully)
4
arduously(adverb, painfully)
3
laboriously
3
tightly(adverb, fast, thoroughly, intensely, fiercely)
3
toughly
3
tryingly(adverb, painfully)
2
demandingly
2
difficultly
2
formidably
2
fussily(adverb, fastidiously)
2
grindingly
2
strenuously
2
toilsomely
2
troublesomely(adverb, painfully)
1
adversely
1
cantankerously
1
complexly
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APASmart Define. (2015). severely thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/severely/thesaurus/synonyms
ChicagoSmart Define. 2015. "severely thesaurus" https://smartdefine.org/severely/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, severely thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/severely/thesaurus/synonyms>.
MLASmart Define. "severely thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/severely/thesaurus/synonyms>