19
seriously(adverb, fast, badly, completely, intensely)
14
badly(adverb, greatly)
13
harshly(adverb, badly, vigorously, strictly, painfully)
12
sternly(adverb, violently, strictly, harshly, brutally)
12
austerely(adverb, strictly, meticulously, ascetically)
12
gravely(adverb, badly, completely, seriously, poorly)
11
intensely(adverb, fast, very, sprightly, really)
10
acutely(adverb, very, really, completely, quite)
9
grimly
8
critically(adverb, fastidiously)
8
rigorously(adverb, fast, just, absolutely, sprightly)
8
ascetically(adverb, ascetically)
8
cruelly(adverb, fast, sprightly, seriously, intensely)
8
hard(adverb, fast, intensely, fiercely, violently)
8
painfully(adverb, fast, badly, sprightly, intensely)
8
roughly(adverb, fast, badly, sprightly, intensely)
8
sharply(adverb, fast, very, sprightly, intensely)
8
starkly(adverb, ascetically)
8
strictly(adverb, just, absolutely, completely, particularly)
8
violently(adverb, fast, very, sprightly, really)
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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>