12
cowardly(adjective, adverb)
8
timidly(adverb, nervously, diffidently, pusillanimously)
7
dreadfully(adverb, greatness)
7
terribly(adverb, greatness, very)
6
anxiously
6
awfully
6
frightfully(adverb, greatness)
5
apprehensively(adverb, nervously, diffidently)
5
horribly(adverb, greatness)
5
nervously
4
spinelessly(adverb, timidly)
4
timorously(adverb, nervously, diffidently)
3
bitterly
3
cravenly(adverb, timidly)
3
diffidently(adverb, nervously)
3
faintheartedly
3
horridly
3
terrifically
3
tremendously
2
afraidly
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APASmart Define. (2015). fearfully thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/fearfully/thesaurus/synonyms
ChicagoSmart Define. 2015. "fearfully thesaurus" https://smartdefine.org/fearfully/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, fearfully thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/fearfully/thesaurus/synonyms>.
MLASmart Define. "fearfully thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/fearfully/thesaurus/synonyms>