5
unappetizing(adjective, dull, disgusting, ugly, bad-looking)
5
unimposing(adjective, dull, disgusting, ugly, bad-looking)
5
unpleasant(adjective, dull, disgusting, ugly, bad-looking)
5
unprepossessing(adjective, dull, disgusting, ugly, bad-looking)
5
unshapely(adjective, dull, disgusting, ugly, bad-looking)
5
untidy(adjective, plain, careless, loose, cheap)
5
vile(adjective, dull, disgusting, ugly, bad-looking)
5
witchy(adjective, dull, disgusting, ugly, bad-looking)
4
dull(adjective, dowdy)
4
frowzy(adjective, unfashionable)
4
old-fashioned(adjective, outmoded, dowdy, out-of-date)
4
seedy(adjective, careless, loose, tasteless, sloppy)
4
unstylish(adjective, plain, cheap, tasteless, shabby)
3
distasteful(adjective, terrible, dirty, badly, scary)
3
homely(adjective, dowdy)
3
outdated(adjective, plain, shabby, drab, dingy)
3
plain(adjective, dowdy)
2
blowzy
2
dilapidated(cheap, tasteless, gaudy, unsophisticated, messy)
2
grimy
10 years ago|8.8k views|share |citing 
APASmart Define. (2016). frumpy thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/frumpy/thesaurus/synonyms
ChicagoSmart Define. 2016. "frumpy thesaurus" https://smartdefine.org/frumpy/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, frumpy thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/frumpy/thesaurus/synonyms>.
MLASmart Define. "frumpy thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/frumpy/thesaurus/synonyms>