Synonyms|112Antonyms|0|Broader|0Narrower|0Related|2

4 entries under substantial topic. ×

1
constant(adjective, calm, fixed, persistent)
0
abiding(adjective, calm, persistent, constant)
0
enduring(adjective, calm, persistent, constant)
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lasting(adjective, calm, persistent, constant)
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APASmart Define. (2011). solid as rock thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/solid_as_rock/thesaurus/synonyms
ChicagoSmart Define. 2011. "solid as rock thesaurus" https://smartdefine.org/solid_as_rock/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2011, solid as rock thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/solid_as_rock/thesaurus/synonyms>.
MLASmart Define. "solid as rock thesaurus" 20 May 2011. Web. 25 September 2026. <https://smartdefine.org/solid_as_rock/thesaurus/synonyms>