202 entries under solid topic. ×

20
constant(adjective, calm, strong, secure, tough)
19
actual(adjective, physical, material, real)
19
physical(adjective, body, hard, material)
19
real(adjective, physical, material, enthusiastic)
19
stabile(adjective, calm, strong, secure, strain)
19
tight(adjective, close, strong, hard, strain)
19
unyielding(adjective, strong, hard, sound, tough)
16
settled(adjective, strong, strain, firm)
16
good(adjective, great, sound, right, reasonable)
16
hearty(adjective, strong, sound, complete, tough)
15
corporeal(adjective, body, physical, material)
14
hefty(adjective, strong, hard, great, tough)
12
powerful(adjective, good, strong, sound, tough)
12
valid(adjective, sound, right, reasonable)
11
tough(adjective, calm, strong, hard)
10
heavy(adjective, give, strong, hard, great)
10
sensible(adjective, good, body, reasonable, firm)
10
true(adjective, good, sound, right, reasonable)
10
well-built(adjective, calm, strong, sound, secure)
9
objective(adjective, body, physical, material)
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APASmart Define. (2016). substantial thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, substantial thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>.
MLASmart Define. "substantial thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms>