81 entries under sour topic. ×

34
stale(adjective, hard, warm, difficult, rank)
20
nasty(adjective, hard, difficult, rank, complex)
18
hard(adjective, difficult, complex, old)
16
musty(adjective, hard, warm, heavy, rank)
13
malodorous(adjective, hard, rank, foul, disagreeable)
11
fetid(adjective, hard, warm, rank, foul)
11
rancid(adjective, bad, rank, foul)
11
rank(noun, adjective, hard, foul, disagreeable)
10
putrid(adjective, rank, foul, disagreeable)
9
frowzy(adjective, bad, rank, foul, disagreeable)
9
rotten(adjective, bad, rank, foul, disagreeable)
8
antiquated(adjective, dull, hard, new, tired)
8
passé(adjective, dull, hard, new, tired)
7
moldy(adjective, heavy, rank, foul, disagreeable)
6
bad(adjective, rank, foul, disagreeable)
6
high(adjective, bad, rank, foul, disagreeable)
6
noisome(adjective, hard, rank, foul, disagreeable)
5
old(adjective, dull, hard, new)
5
smelly(adjective, hard, warm, rank, foul)
4
decayed(verb, adjective, bad, hard, foul)
11 years ago|13k views|share |citing 
APASmart Define. (2015). fusty thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/fusty/thesaurus/synonyms
ChicagoSmart Define. 2015. "fusty thesaurus" https://smartdefine.org/fusty/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, fusty thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/fusty/thesaurus/synonyms>.
MLASmart Define. "fusty thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/fusty/thesaurus/synonyms>