72 entries under adjective topic. ×

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needful
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real
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rock-hard(hard, compact, dense)
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rock-solid(hard, compact, dense, rock-hard)
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rocky
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safe
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stable(strong, hard, substantial, sturdy)
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sturdy(strong, hard, substantial, compact)
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thick(strong, hard, substantial, compact)
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tight(strong, hard, substantial, compact)
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unyielding(hard, compact, dense, rock-hard)
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vitreous
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APASmart Define. (2016). rock thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/rock/thesaurus/synonyms
ChicagoSmart Define. 2016. "rock thesaurus" https://smartdefine.org/rock/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, rock thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/rock/thesaurus/synonyms>.
MLASmart Define. "rock thesaurus" 5 February 2016. Web. 26 September 2026. <https://smartdefine.org/rock/thesaurus/synonyms>