6
disagreeable(adjective, dull, disgusting, ugly, bad-looking)
6
disgusting(adjective, dull, ugly, bad-looking)
6
dreadful(adjective, dull, disgusting, ugly, bad-looking)
6
frightful(adjective, dull, disgusting, ugly, revolting)
6
frumpish(adjective, dull, disgusting, ugly, bad-looking)
6
haggish(adjective, dull, disgusting, ugly, bad-looking)
6
nauseating(adjective, dull, disgusting, ugly, bad-looking)
6
objectionable(adjective, dull, disgusting, ugly, bad-looking)
6
plain(adjective, unpleasant, awful, ugly, revolting)
6
sickening(adjective, dull, disgusting, ugly, bad-looking)
6
unappetizing(adjective, dull, disgusting, ugly, bad-looking)
6
unbecoming(adjective, dull, disgusting, ugly, bad-looking)
6
vile(adjective, dull, disgusting, ugly, bad-looking)
5
abhorrent(adjective, dull, disgusting, ugly, bad-looking)
5
frumpy(adjective, dull, disgusting, ugly, bad-looking)
5
homely(adjective, plain, unpleasant, awful, revolting)
5
repellant(adjective, dull, disgusting, ugly, bad-looking)
5
repellent(adjective, dull, disgusting, ugly, bad-looking)
5
shocking(adjective, dull, disgusting, ugly, bad-looking)
5
witchy(adjective, dull, disgusting, ugly, bad-looking)
10 years ago|8.8k views|share |citing 
APASmart Define. (2016). unprepossessing thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unprepossessing/thesaurus/synonyms
ChicagoSmart Define. 2016. "unprepossessing thesaurus" https://smartdefine.org/unprepossessing/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, unprepossessing thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unprepossessing/thesaurus/synonyms>.
MLASmart Define. "unprepossessing thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/unprepossessing/thesaurus/synonyms>