97 entries under significant topic. ×

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noticeable(substantial, large)
0
reasonable(substantial, large)
0
renowned(strong, powerful, substantial, large)
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respectable(substantial, large, generous, good-sized)
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solid(large, considerable)
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solid gold(expression, substantial, large)
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something else(expression, substantial, large)
0
sound(large, considerable)
0
stable(large, considerable)
0
steady(large, considerable)
0
stout(strong, powerful, large, sturdy)
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strong(powerful, large, sturdy, robust)
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sturdy(strong, powerful, large, robust)
0
super(great, big, substantial, large)
0
super-duper(substantial, large)
0
unreal(substantial, large)
0
venerable(substantial, large)
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APASmart Define. (2016). extensive thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/extensive/thesaurus/synonyms
ChicagoSmart Define. 2016. "extensive thesaurus" https://smartdefine.org/extensive/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, extensive thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/extensive/thesaurus/synonyms>.
MLASmart Define. "extensive thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/extensive/thesaurus/synonyms>