1
harmless
1
home-free(adjective, secure, safe, snug, intact)
1
immortal
1
impassible
1
impassive(adjective, unaffected, unyielding, unbending, resistant)
1
imperishable
1
in safety(expression, adjective, secure, safe, snug)
1
incontestable
1
incorruptible
1
indelible
1
ineffaceable
1
ineradicable
1
inextinguishable
1
inflexible
1
infrangible
1
intact(adjective, secure, perfect, safe, snug)
1
intractable
1
irresistible
1
justifiable
1
maintained(adjective, secure, safe, snug, intact)
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APASmart Define. (2015). invulnerable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/invulnerable/thesaurus/synonyms
ChicagoSmart Define. 2015. "invulnerable thesaurus" https://smartdefine.org/invulnerable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, invulnerable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/invulnerable/thesaurus/synonyms>.
MLASmart Define. "invulnerable thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/invulnerable/thesaurus/synonyms>