50
scary(adjective, feeling, cause, fear, frightening)
19
frightening(adjective, awful, wonderful, grand, shocking)
17
terrible(adjective, awful, wonderful, fear, grand)
15
dreadful(adjective, awful, wonderful, fear, grand)
12
terrifying(adjective, bad, awful, disgusting, sinful)
12
frightful(adjective, fear, alarming)
12
dire(adjective, fear, black, baleful, bodeful)
12
formidable(adjective, awful, wonderful, fear, grand)
12
horrendous(adjective, bad, awful, disgusting, sinful)
11
fearful(adjective, awful, wonderful, fear, grand)
10
horrible(adjective, awful, wonderful, grand, shocking)
9
awful(adjective, wonderful, amazing, grand, shocking)
8
dread
8
macabre(adjective, bad, awful, disgusting, black)
8
horrific
7
alarming(adjective, awful, wonderful, grand, shocking)
7
awe-inspiring(adjective, awful, wonderful, amazing, grand)
7
direful(adjective, fear, black, baleful, bodeful)
7
ghastly(adjective, bad, awful, fear, disgusting)
7
appalling(adjective, fear)
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APASmart Define. (2015). fearsome thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/fearsome/thesaurus/synonyms
ChicagoSmart Define. 2015. "fearsome thesaurus" https://smartdefine.org/fearsome/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, fearsome thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/fearsome/thesaurus/synonyms>.
MLASmart Define. "fearsome thesaurus" 17 July 2015. Web. 20 September 2026. <https://smartdefine.org/fearsome/thesaurus/synonyms>