6
brutally(adverb, fast, sprightly, intensely, fiercely)
6
dangerously
6
dourly
6
grievously(adverb, painfully)
5
bleakly
5
dreadfully
5
furiously(adverb, fast, greatness, sprightly, intensely)
5
hardly
5
heavily(adverb, fast, sprightly, seriously, intensely)
5
onerously(adverb, difficultly)
5
oppressively(adverb, painfully, difficultly)
5
plainly
5
savagely(adverb, fast, sprightly, intensely, fiercely)
5
sparely
5
stringently
5
very(extremely, greatly)
4
arduously(adverb, painfully, difficultly)
4
awfully
4
coolly
4
deeply
11 years ago|18k views|share |citing 
APASmart Define. (2015). severely thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/severely/thesaurus/synonyms
ChicagoSmart Define. 2015. "severely thesaurus" https://smartdefine.org/severely/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, severely thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/severely/thesaurus/synonyms>.
MLASmart Define. "severely thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/severely/thesaurus/synonyms>