80 entries under ugly topic. ×

19
nauseating(adjective, dull, disgusting, endured)
17
disagreeable(adjective, dull, offensive, unpleasant, awful)
17
foul(adjective, dull, evil, nasty, awful)
17
repellent(adjective, dull, nasty, unpleasant, awful)
17
unpleasant(adjective, dull, offensive, awful, disgusting)
16
abhorrent(adjective, dull, unpleasant, awful, violent)
16
sickening(adjective, dull, disgusting, endured)
14
grim(adjective, appearance, pain, unpleasant, awful)
11
grotesque(adjective, appearance, evil, dislike, disgusting)
10
cruel(adjective, appearance, evil, unpleasant, awful)
9
haggish(adjective, dull, appearance, dislike, disgusting)
9
objectionable(adjective, dull, terrible, dirty, disgusting)
9
obnoxious(adjective, appearance, nasty, dislike, unpleasant)
8
unholy(adjective, dislike, unpleasant, awful, terrible)
7
frumpy(adjective, dull, terrible, dirty, disgusting)
7
unappetizing(adjective, dull, disgusting, bad-looking)
6
repellant(adjective, dull, disgusting, ugliness)
6
unprepossessing(adjective, dull, disgusting, revolting)
6
unsightly(adjective, appearance, dislike, disgusting, horrible)
5
Gorgonian(adjective, dull, disgusting, bad-looking)
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APASmart Define. (2016). frightful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/frightful/thesaurus/synonyms
ChicagoSmart Define. 2016. "frightful thesaurus" https://smartdefine.org/frightful/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, frightful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/frightful/thesaurus/synonyms>.
MLASmart Define. "frightful thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/frightful/thesaurus/synonyms>