3
gruff(adjective, sound)
3
harsh(adjective, mean, rough)
3
loathsome
3
mean(verb, adjective, rough, harsh)
3
nasty(adjective, mean, rough, harsh)
3
odious
3
offensive(adjective, mean, rough, harsh)
3
putrid(adjective, rotten, stinking)
3
rank(adjective, foul, stinking)
3
reeking
3
repugnant
3
repulsive(adjective, mean, rough, harsh)
3
sourish
3
tart(adjective, effect, bitter, sour)
3
unappealing
3
unmelodious
3
unmusical
3
unsavory(adjective, mean, rough, harsh)
2
fusty
2
abhorrent
10 years ago|8.4k views|share |citing 
APASmart Define. (2016). sweet thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sweet/thesaurus/antonyms
ChicagoSmart Define. 2016. "sweet thesaurus" https://smartdefine.org/sweet/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, sweet thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sweet/thesaurus/antonyms>.
MLASmart Define. "sweet thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/sweet/thesaurus/antonyms>