84 entries under grim topic. ×

1
out-of-tune(adjective, hard, severe, sharp, flat)
1
pitiless(adjective, hard, tough, severe, harsh)
1
relentless(adjective, hard, tough, severe, harsh)
1
rigid(adjective, hard, severe, sharp, flat)
1
rigorous(adjective, hard, tough, harsh, cruel)
1
rusty(adjective, hard, severe, sharp, flat)
1
ruthless(adjective, hard, tough, severe, harsh)
1
sanguinary(adjective, hard, tough, harsh, cruel)
1
savage(adjective, hard, tough, harsh, cruel)
1
screeching(adjective, hard, severe, sharp, flat)
1
shameless(adjective, hard, tough, evil, rough)
1
stridulous(adjective, hard, severe, sharp, flat)
1
tough(adjective, hard, severe, nasty, harsh)
1
tyrannical(adjective, hard, tough, harsh, cruel)
1
uncontrite(adjective, hard, tough, harsh, cruel)
1
unforgiving(adjective, hard, tough, harsh, cruel)
1
unlevel(adjective, hard, severe, sharp, flat)
1
unmerciful(adjective, hard, tough, harsh, cruel)
1
unregenerate(adjective, hard, tough, harsh, cruel)
1
unremitting(adjective, hard, tough, harsh, cruel)
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APASmart Define. (2016). sour thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/sour/thesaurus/synonyms
ChicagoSmart Define. 2016. "sour thesaurus" https://smartdefine.org/sour/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, sour thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/sour/thesaurus/synonyms>.
MLASmart Define. "sour thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/sour/thesaurus/synonyms>