87 entries under dreadful topic. ×

9
repellent(adjective, evil, unpleasant, base, awful)
8
ghoulish(adjective, taste, awful, terrible, horrible)
8
shameful(adjective, bad, severe, evil, unpleasant)
7
redoubtable(adjective, tough, difficult, awful, terrible)
6
unbearable(adjective, severe, unpleasant, awful, terrible)
5
detestable(adjective, taste, unpleasant, awful, terrible)
5
lousy(adjective, bad, nasty, sad, unhappy)
4
distressing(adjective, bad, awful, terrible, shocking)
4
sinister(awful, terrible)
4
ugly(adjective, severe, evil, plain, base)
4
unearthly(adjective, awful, terrible, unreasonable, shocking)
4
unpleasant(adjective, mean, severe, nasty, plain)
3
bloodcurdling(nasty, unpleasant, awful, terrible, unkind)
3
lamentable(adjective, sad, unhappy, awful, terrible)
3
scandalous(adjective, nasty, unpleasant, awful, disgusting)
2
abject(evil, wicked, shameful, depraved)
2
baleful(awful, terrible)
2
base(evil, wicked, shameful, disgraceful)
2
catastrophic(adjective, sad, unhappy, awful, terrible)
2
contemptible(evil, wicked, shocking, dishonorable)
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APASmart Define. (2015). appalling thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/appalling/thesaurus/synonyms
ChicagoSmart Define. 2015. "appalling thesaurus" https://smartdefine.org/appalling/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, appalling thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/appalling/thesaurus/synonyms>.
MLASmart Define. "appalling thesaurus" 17 July 2015. Web. 23 September 2026. <https://smartdefine.org/appalling/thesaurus/synonyms>