18
macabre(adjective, awful, grim, shocking, atrocious)
18
terrifying(adjective, unpleasant, awful, violent, disgusting)
17
dread(noun, adjective, bad, severe, awful)
17
evil(adjective, evil, nasty, unpleasant, foul)
17
severe(adjective, appearance, bad, hard, great)
17
unspeakable(adjective, mean, nasty, unpleasant, awful)
17
wicked(adjective, bad, severe, evil, nasty)
16
extreme(adjective, bad, strong, great, severe)
16
grievous(adjective, strong, severe, sad, tender)
16
miserable(adjective, sad, unhappy, inferior, useless)
16
odious(adjective, bad, severe, evil, nasty)
16
repellent(adjective, dull, evil, nasty, offensive)
16
sickening(adjective, dull, unpleasant, disgusting, horrible)
16
terrific(adjective, great, tough, intense, unpleasant)
15
distressing(adjective, severe, difficult, sad, tender)
15
execrable(adjective, mean, nasty, unpleasant, awful)
15
fearful(adjective, good, bad, great, severe)
15
formidable(adjective, appearance, bad, great, nasty)
15
horrific(adjective, great, tough, nasty, awful)
14
fearsome(adjective, awful, wonderful, fear, grand)
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APASmart Define. (2016). terrible thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/terrible/thesaurus/synonyms
ChicagoSmart Define. 2016. "terrible thesaurus" https://smartdefine.org/terrible/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, terrible thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/terrible/thesaurus/synonyms>.
MLASmart Define. "terrible thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/terrible/thesaurus/synonyms>