473 entries under adjective topic. ×

13
set(verb, calm, fix, strong)
13
steady(verb, calm, set, fix)
12
fastened(state, strong, sound, firm)
12
impregnable(sound, reasonable, firm, true)
12
positive(belief, certain, sure, confident)
12
shut(verb, close, block, bar)
11
comfortable(calm, quiet, light, smooth)
10
hopeful(certain, hope, definite, bold)
10
immovable(strong, firm, solid, steady)
10
inviolable
10
invulnerable
10
snug(calm, quiet, light, smooth)
10
steadfast(calm, strong, firm, honest)
9
sturdy(calm, strong, hard, sound)
8
immune(perfect, safe, intact, unbroken)
8
self-assured(attitude, solid, belief, certain)
8
sheltered(soft, warm, safe, relaxing)
8
tenacious(strong, sound, free, tough)
8
trustworthy(good, clear, sound, reasonable)
8
unafraid(certain, sure, confident, self-assured)
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APASmart Define. (2015). secure thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/secure/thesaurus/synonyms
ChicagoSmart Define. 2015. "secure thesaurus" https://smartdefine.org/secure/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, secure thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/secure/thesaurus/synonyms>.
MLASmart Define. "secure thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/secure/thesaurus/synonyms>