78 entries under adverb topic. ×

12
cowardly
8
timidly(nervously, diffidently, pusillanimously)
7
dreadfully
7
terribly(greatness, very)
6
anxiously
6
awfully
6
frightfully
5
apprehensively(nervously, diffidently)
5
horribly
5
nervously
4
spinelessly
4
timorously(nervously, diffidently)
3
cravenly
3
diffidently
3
faintheartedly
3
horridly
3
terrifically
3
tremendously
2
fearsomely
2
pusillanimously
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APASmart Define. (2015). fearfully thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fearfully/thesaurus/synonyms
ChicagoSmart Define. 2015. "fearfully thesaurus" https://smartdefine.org/fearfully/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, fearfully thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fearfully/thesaurus/synonyms>.
MLASmart Define. "fearfully thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/fearfully/thesaurus/synonyms>