88 entries under significant topic. ×

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obvious(substantial, definite, considerable)
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palpable(substantial, considerable)
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perceivable(substantial, definite, considerable)
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perceptible(substantial, considerable)
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plain(substantial, definite, considerable)
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principal(large, considerable)
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pronounced(substantial, definite, considerable)
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reasonable(substantial, large, adequate)
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recognizable(substantial, definite, considerable)
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renowned(substantial, large)
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serious(large, considerable)
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solid gold(expression, substantial, large)
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something(substantial, large, quite, fairly)
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something else(expression, substantial, large)
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stable(large, considerable)
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steady(large, considerable)
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stout(large, sturdy, robust, considerable)
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sturdy(large, robust, considerable)
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super-duper(substantial, large)
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superabundant(large, considerable)
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APASmart Define. (2016). sizable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sizable/thesaurus/synonyms
ChicagoSmart Define. 2016. "sizable thesaurus" https://smartdefine.org/sizable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, sizable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sizable/thesaurus/synonyms>.
MLASmart Define. "sizable thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/sizable/thesaurus/synonyms>