80 entries under substantial topic. ×

4
heavyweight(adjective, big, heavy, important, significant)
3
sizeable(adjective, significant, large)
2
abundant(adjective, significant, large, considerable)
2
heavy(adjective, strong, harsh, solid, big)
2
much(significant, large)
2
noticeable(significant, large)
2
respectable(adjective, significant, large)
2
severe(adjective, hard, difficult, harsh, big)
2
sober(adjective, big, heavy)
2
tidy(adjective, significant, large, considerable)
1
burdensome(hard, severe, offensive, big, heavy)
1
doozie(big, important, significant, large)
1
dynamite(big, important, significant, large)
1
fab(big, important, significant, large)
1
fat(big, heavy, important, significant)
1
forcible(intense, big, heavy, powerful)
1
hefty(big, heavy, significant, large)
1
massive(intense, big, heavy, powerful, significant)
1
mondo(big, important, significant, large)
1
plentiful(significant, large, considerable)
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APASmart Define. (2015). consequential thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/consequential/thesaurus/synonyms
ChicagoSmart Define. 2015. "consequential thesaurus" https://smartdefine.org/consequential/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, consequential thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/consequential/thesaurus/synonyms>.
MLASmart Define. "consequential thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/consequential/thesaurus/synonyms>