188 entries under adjective topic. ×

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insensible(strong, hard, tough, sturdy)
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inured
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jagged(severe, bleak, stark, austere)
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jangling(severe, bleak, stark, austere)
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jarring(severe, bleak, stark, austere)
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long-established
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mean(severe, sharp, nasty, bleak)
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nasty(severe, sharp, bleak, stark)
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noisy(severe, bleak, stark, austere)
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not smooth(expression, severe, bleak, stark)
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obdurate(strong, hard, tough, sturdy)
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off-key(severe, bleak, stark, austere)
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out-of-key(severe, bleak, stark, austere)
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out-of-tune(severe, bleak, stark, austere)
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pitiless(severe, bleak, stark, austere)
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punitive(severe, sharp, nasty, bleak)
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rasping(severe, bleak, stark, austere)
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raucous(severe, bleak, stark, austere)
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rigorous(strong, hard, tough, severe)
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robust(strong, hard, tough, sturdy)
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APASmart Define. (2013). hard-shell thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/hard-shell/thesaurus/synonyms
ChicagoSmart Define. 2013. "hard-shell thesaurus" https://smartdefine.org/hard-shell/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2013, hard-shell thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/hard-shell/thesaurus/synonyms>.
MLASmart Define. "hard-shell thesaurus" 17 June 2013. Web. 22 September 2026. <https://smartdefine.org/hard-shell/thesaurus/synonyms>