11
harsh(adjective, strong, rough)
9
sour(adjective, strong, rough)
7
hard(adjective, strong, rough)
6
immature(adjective, strong, rough)
5
very upset
5
strong(adjective, rough)
3
intense
3
beautiful
3
jejune
3
uptight
3
incipient
2
green
2
gruff
2
rough(adjective, strong)
2
tart(adjective, strong, rough)
2
powerful
2
unmelodious
2
unmusical
2
unripe(adjective, strong, rough)
2
young(adjective, strong, rough)
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APASmart Define. (2016). mellow thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/mellow/thesaurus/antonyms
ChicagoSmart Define. 2016. "mellow thesaurus" https://smartdefine.org/mellow/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, mellow thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/mellow/thesaurus/antonyms>.
MLASmart Define. "mellow thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/mellow/thesaurus/antonyms>