110 entries under terrible topic. ×

12
hair-raising(adjective, awful, strange, horrible)
12
horrific(adjective, bad, awful, fear)
11
dreaded(adjective, awful, horrible, afraid)
11
grisly(adjective, unpleasant, awful, disgusting)
11
horrid(adjective, unpleasant, awful, fear)
11
terrifying(adjective, unpleasant, awful, disgusting)
9
alarming(adjective, awful, wonderful, fear)
9
grievous(adjective, awful, horrible, afraid)
9
grim(adjective, pain, dark, unpleasant, awful)
9
redoubtable(adjective, tough, difficult, awful)
9
vicious(adjective, awful, wicked, horrible)
8
abominable(adjective, unpleasant, awful, disgusting)
8
heinous(adjective, unpleasant, awful, disgusting)
8
unspeakable(adjective, mean, bad, unpleasant, awful)
8
wicked(adjective, awful, horrible, afraid)
7
bad(adjective, unpleasant, awful, disgusting)
7
deadly(adjective, awful, strange, horrible)
7
horrifying(adjective, severe, awful, foul)
7
lurid(adjective, unpleasant, awful, strange)
7
morbid(adjective, awful, horrible, afraid)
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APASmart Define. (2016). fearful thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/fearful/thesaurus/synonyms
ChicagoSmart Define. 2016. "fearful thesaurus" https://smartdefine.org/fearful/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, fearful thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/fearful/thesaurus/synonyms>.
MLASmart Define. "fearful thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/fearful/thesaurus/synonyms>