3
secure(verb, adjective, set, easy, solid)
3
set(verb, adjective, solid, certain, sure)
2
assured(adjective, clear, strong, simple, easy)
2
decided(adjective, set, solid, certain, sure)
2
determined(adjective, strong, easy, solid, certain)
2
fixed(adjective, set, solid, certain, sure)
2
guaranteed(adjective, set, clear, simple, plain)
2
immotile(adjective, still, fixed, motionless, stationary)
2
in the bag(expression, adjective, idiom, clear, strong)
2
on ice(expression, adjective, strong, easy, solid)
2
open-and-shut(adjective, pretty)
2
settled(adjective, set, strong, easy, solid)
1
able(adjective, strong, easy, solid, certain)
1
absolute(adjective, strong, easy, solid, certain)
1
absolutely certain(expression, adjective, set, solid, certain)
1
anchored(adjective, still, fixed, motionless, stationary)
1
ascertained
1
at a standstill(expression, adjective, still, fixed, stationary)
1
at ease(expression, adjective, strong, easy, certain)
1
at rest(expression, adjective, still, fixed, stationary)
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APASmart Define. (2015). nailed down thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/nailed_down/thesaurus/synonyms
ChicagoSmart Define. 2015. "nailed down thesaurus" https://smartdefine.org/nailed_down/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, nailed down thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/nailed_down/thesaurus/synonyms>.
MLASmart Define. "nailed down thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/nailed_down/thesaurus/synonyms>