66 entries under solid topic. ×

5
staid(adjective, firm, sensible, steady)
2
calm(adjective, firm, sensible, steady)
2
sedate(adjective, firm, sensible, steady)
2
sober(adjective, firm, sensible, steady)
2
steady(adjective, firm, sensible, stable)
0
abiding(adjective, firm, stable, fixed)
0
allegiant(adjective, firm, sensible, steady)
0
ardent(adjective, firm, sensible, steady)
0
balanced(adjective, firm, sensible, steady)
0
brick-wall(adjective, firm, stable, fixed)
0
certain(adjective, firm, stable, fixed)
0
changeless(adjective, firm, stable, fixed)
0
constant(adjective, firm, sensible, steady)
0
cool(adjective, firm, sensible, steady)
0
dependable(adjective, firm, sensible, steady)
0
durable(adjective, firm, stable, fixed)
0
enduring(adjective, firm, stable, fixed)
0
equable(adjective, firm, sensible, steady)
0
even(adjective, firm, stable, fixed)
0
fast(adjective, firm, sensible, steady)
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APASmart Define. (2015). serious-minded thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/serious-minded/thesaurus/synonyms
ChicagoSmart Define. 2015. "serious-minded thesaurus" https://smartdefine.org/serious-minded/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, serious-minded thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/serious-minded/thesaurus/synonyms>.
MLASmart Define. "serious-minded thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/serious-minded/thesaurus/synonyms>