97 entries under rough topic. ×

1
earsplitting(adjective, hard, severe, sharp, flat)
1
evil(adjective, hard, nasty, rude)
1
formidable(adjective, hard, evil, nasty)
1
glaring(adjective, hard, severe, sharp, flat)
1
hard-nosed(adjective, hard, severe, evil)
1
ignoble(adjective, hard, evil, nasty)
1
incompatible(adjective, hard, severe, sharp, flat)
1
infamous(adjective, hard, evil, nasty)
1
jagged(adjective, hard, severe, sharp, flat)
1
jangling(adjective, hard, severe, sharp, flat)
1
knavish(adjective, hard, evil, nasty)
1
lousy(adjective, bad, hard, evil)
1
low-down and dirty(expression, adjective, idiom, hard, evil)
1
malicious(adjective, mean, hard, evil)
1
malign(adjective, hard, evil, nasty)
1
noisy(adjective, hard, severe, sharp)
1
out-of-key(adjective, hard, severe, sharp, flat)
1
out-of-tune(adjective, hard, severe, sharp, flat)
1
perfidious(adjective, hard, evil, nasty)
1
pesky(adjective, hard, evil, nasty)
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APASmart Define. (2016). sour thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sour/thesaurus/synonyms
ChicagoSmart Define. 2016. "sour thesaurus" https://smartdefine.org/sour/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, sour thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sour/thesaurus/synonyms>.
MLASmart Define. "sour thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/sour/thesaurus/synonyms>