66 entries under firm topic. ×

1
enduring(adjective, calm, quiet, gentle)
1
immovable(adjective, calm, cool, solid)
1
regular(adjective, solid, stable, fixed)
1
sound(adjective, calm, sensible, solid)
1
stable(adjective, calm, sound, solid)
0
abiding(adjective, solid, stable, fixed)
0
allegiant(adjective, sensible, solid, steady)
0
ardent(adjective, sensible, solid, steady)
0
brick-wall(adjective, solid, stable, fixed)
0
changeless(adjective, solid, stable, fixed)
0
constant(adjective, sensible, solid, steady)
0
durable(adjective, solid, stable, fixed)
0
fast(adjective, sensible, solid, steady)
0
fixed(adjective, solid, certain, stable)
0
intense(adjective, sensible, solid, steady)
0
liege(adjective, sensible, solid, steady)
0
loyal(adjective, sensible, solid, steady)
0
never-failing(adjective, solid, stable, fixed)
0
patterned(adjective, solid, stable, fixed)
0
reliable(adjective, calm, sound, sensible)
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APASmart Define. (2015). self-possessed thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/self-possessed/thesaurus/synonyms
ChicagoSmart Define. 2015. "self-possessed thesaurus" https://smartdefine.org/self-possessed/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, self-possessed thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/self-possessed/thesaurus/synonyms>.
MLASmart Define. "self-possessed thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/self-possessed/thesaurus/synonyms>