79 entries under secure topic. ×

11
immovable(adjective, strong, firm, solid)
11
staunch(adjective, calm, close, strong)
10
fastened(adjective, strong, sound, firm)
10
solid(verb, adjective, adverb, calm, strong)
10
sure(adjective, calm, close, strong)
9
secured(adjective, strong, substantial, stable)
8
unwavering(adjective, calm, close, strong)
7
anchored(adjective, calm, strong, firm)
7
closed(strong, property, substantial, stable)
7
immobile(adjective, strong, solid, intense)
7
rooted(adjective, strong, fixed, impassive)
7
stubborn(adjective, characteristic, quality, strong)
6
bolted(adjective, strong, short, substantial)
6
locked(adjective, strong, sound, firm)
5
attached(adjective, close, correct, firm)
5
reliable(adjective, calm, close, strong)
5
resolute(adjective, calm, close, strong)
4
abiding(adjective, calm, strong, tough)
4
balanced(adjective, calm, strong, firm)
4
unshakable(strong, steady, substantial, stable)
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APASmart Define. (2016). fast thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fast/thesaurus/synonyms
ChicagoSmart Define. 2016. "fast thesaurus" https://smartdefine.org/fast/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, fast thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fast/thesaurus/synonyms>.
MLASmart Define. "fast thesaurus" 1 April 2016. Web. 21 September 2026. <https://smartdefine.org/fast/thesaurus/synonyms>