238 entries under severe topic. ×

1
cacophonous(adjective, hard, sharp, flat)
1
caterwauling(adjective, hard, sharp, flat)
1
challenging(tough, painful, thorough, demanding)
1
clashing(adjective, hard, sharp, flat)
1
coarse(adjective, hard, sharp, flat)
1
cracked(adjective, hard, sharp, flat)
1
craggy(adjective, hard, sharp, flat)
1
creaking(adjective, hard, sharp, flat)
1
croaking(adjective, hard, sharp, flat)
1
crucial(tough, painful, problematic, trying)
1
cutting
1
difficile(tough, painful, problematic, trying)
1
disagreeing(adjective, hard, sharp, flat)
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disciplinary(adjective, strong, hard, tough)
1
discordant(adjective, hard, sharp, flat)
1
dissonant(adjective, hard, sharp, flat)
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disturbing(adjective, hard, sharp, flat)
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dyed-in-the-wool(adjective, set, strong, hard, tough)
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earsplitting(adjective, hard, sharp, flat)
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easier said than done(expression, tough, painful, problematic)
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APASmart Define. (2015). rigid thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, rigid thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>.
MLASmart Define. "rigid thesaurus" 3 August 2015. Web. 25 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms>