75 entries under substantial topic. ×

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noticeable(significant, considerable)
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observable(significant, definite, considerable)
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obvious(significant, definite, considerable)
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palpable(significant, considerable)
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perceivable(significant, definite, considerable)
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perceptible(significant, considerable)
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plain(significant, definite, considerable)
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pronounced(significant, definite, considerable)
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recognizable(significant, definite, considerable)
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reinforced(adjective, solid, heavy, powerful)
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stark(adjective, solid, heavy, powerful)
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tangible(significant, definite, considerable)
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visible(significant, definite, considerable)
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well-built(adjective, strong, tough, solid, heavy)
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well-founded(adjective, solid, heavy, powerful)
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APASmart Define. (2016). healthy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/healthy/thesaurus/synonyms
ChicagoSmart Define. 2016. "healthy thesaurus" https://smartdefine.org/healthy/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, healthy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/healthy/thesaurus/synonyms>.
MLASmart Define. "healthy thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/healthy/thesaurus/synonyms>