46 entries under solid topic. ×

8
set(adjective, calm, strong, continue)
5
strong(adjective, calm, steady, substantial)
4
enduring(adjective, calm, strong, substantial)
4
fast(adjective, calm, strong, steady)
3
steadfast(adjective, calm, strong, steady)
3
well-founded(adjective, calm, strong, steady)
2
abiding(adjective, calm, strong, secure, firm)
2
lasting(adjective, calm, strong, steady)
2
permanent(adjective, calm, strong, steady)
1
anchored(calm, strong, steady, substantial)
1
balanced(calm, strong, steady, substantial)
1
brick-wall(calm, strong, steady, substantial)
1
calm(strong, steady, substantial, even)
1
constant(adjective, calm, strong, steady)
1
durable(adjective, calm, strong, steady)
1
equable(calm, strong, steady, substantial)
1
even(calm, strong, steady, substantial)
1
fixed resistant(expression, calm, strong, substantial)
1
immutable(calm, strong, steady, substantial)
1
invariable(calm, strong, steady, substantial)
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APASmart Define. (2016). deep-rooted thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/deep-rooted/thesaurus/synonyms
ChicagoSmart Define. 2016. "deep-rooted thesaurus" https://smartdefine.org/deep-rooted/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, deep-rooted thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/deep-rooted/thesaurus/synonyms>.
MLASmart Define. "deep-rooted thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/deep-rooted/thesaurus/synonyms>