80 entries under substantial topic. ×

32
weighty(adjective, good, clear, strong, harsh)
30
important(adjective, good, strong, importance, big)
30
momentous(adjective, good, clear, importance, big)
30
significant(adjective, good, clear, importance, big)
25
grave(adjective, harsh, importance, big, heavy)
24
serious(adjective, good, harsh, importance, big)
19
material(adjective, good, importance, big, heavy)
18
big(adjective, good, importance, heavy, important)
18
considerable(adjective, importance, big, heavy, important)
14
influential(adjective, good, clear, strong, importance)
14
meaningful(adjective, good, clear, importance, big)
13
essential(adjective, importance, big, important, significant)
9
critical(adjective, harsh, big, heavy, important)
9
crucial(adjective, big, heavy, important, lively)
8
large(adjective, strong, solid, big, important)
8
major(adjective, heavy, important, significant)
8
noteworthy(adjective, big, important, lively)
7
ample(adjective, important, significant, large)
5
goodly(adjective, significant, large, considerable)
4
distinguished(adjective, big, important, significant)
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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>