145 entries under dreadful topic. ×

26
unpleasant(adjective, dull, bad, severe, nasty)
25
disgusting(adjective, dull, nasty, offensive, unpleasant)
24
gruesome(adjective, appearance, bad, evil, unpleasant)
22
grisly(adjective, appearance, evil, nasty, unpleasant)
20
deplorable(adjective, sad, awful, miserable, wicked)
19
heinous(adjective, severe, evil, offensive, unpleasant)
18
abhorrent(adjective, dull, bad, nasty, offensive)
18
beastly(adjective, adverb, mean, bad, severe)
18
disagreeable(adjective, dull, nasty, tender, offensive)
18
terrifying(adjective, unpleasant, awful, violent, disgusting)
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
grievous(adjective, strong, severe, sad, tender)
16
odious(adjective, bad, severe, evil, nasty)
16
repellent(adjective, dull, evil, nasty, offensive)
16
sickening(adjective, dull, unpleasant, disgusting, horrible)
15
distressing(adjective, severe, difficult, sad, tender)
15
execrable(adjective, mean, nasty, unpleasant, awful)
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APASmart Define. (2016). terrible thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/terrible/thesaurus/synonyms
ChicagoSmart Define. 2016. "terrible thesaurus" https://smartdefine.org/terrible/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, terrible thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/terrible/thesaurus/synonyms>.
MLASmart Define. "terrible thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/terrible/thesaurus/synonyms>