5
treacherous(adjective, bad, hard, severe, evil)
5
twisted(adjective, strange, look like)
5
uncouth(adjective, dull, rough, low, rude)
5
ungracious(adjective, rough, difficult, rude, unpleasant)
5
unpalatable(adjective, awful, terrible, horrible, yuck)
5
unrefined(adjective, dull, rough, low, rude)
5
unsavory(adjective, awful, terrible, horrible, yuck)
5
unseemly(adjective, dull, rough, low, plain)
5
vexatious(adjective, hard, severe, evil, rough)
5
waspish(adjective, mean, difficult, attitude, cross)
5
worthless(adjective, evil, shameful, dishonorable, depraved)
4
appalling(adjective, severe, evil, plain, base)
4
baleful(adjective, critical, forbidding, denunciatory)
4
coarse(adjective, dull, evil, rough, low)
4
crotchety(mean, cross, irritable, crabby, cranky)
4
degenerate(adjective, evil, shameful, depraved)
4
depraved(adjective, evil, corrupt, immoral, dishonorable)
4
low(adjective, dull, blue, evil, rough)
4
odd(adjective, strange, look like)
4
alarming
10 years ago|37k views|share |citing 
APASmart Define. (2016). ugly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ugly/thesaurus/synonyms
ChicagoSmart Define. 2016. "ugly thesaurus" https://smartdefine.org/ugly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, ugly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ugly/thesaurus/synonyms>.
MLASmart Define. "ugly thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/ugly/thesaurus/synonyms>