74 entries under considerable topic. ×

83
strong(adjective, calm, good, strong, hard)
61
firm(noun, adjective, calm, close, strong)
59
sound(noun, adjective, calm, strong, hard)
57
stable(adjective, strong, hard, sound, complete)
49
solid(adjective, calm, good, close, strong)
47
stout(adjective, calm, strong, sound, secure)
40
significant(adjective, strong, importance, big, heavy)
35
big(adjective, strong, great, sound, tough)
34
durable(adjective, calm, strong, sound, secure)
33
material(noun, adjective, body, hard, solid)
29
abundant(adjective, give, great, strain, big)
28
ample(adjective, give, great, reasonable, fair)
27
steady(adjective, calm, strong, sound, secure)
26
large(adjective, great, fair, big, important)
24
weighty(adjective, good, strong, sound, right)
22
consequential(adjective, importance, big, heavy, important)
22
sturdy(adjective, calm, strong, hard, sound)
21
important(adjective, strong, importance, big, heavy)
21
tangible(adjective, body, solid, physical, material)
19
serious(adjective, importance, big, heavy, important)
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APASmart Define. (2016). substantial thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, substantial thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>.
MLASmart Define. "substantial thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms>