Synonyms|442Antonyms|75|Broader|0Narrower|0Related|180

212 entries under adjective topic. ×

2
dependable
2
devoted
2
impregnable
2
indefatigable
2
inelastic(determined, resolute, obstinate, uncompromising)
2
invariable
2
inviolable
2
lasting
2
loyal
2
obsessive
2
persevering(strong, tough, firm, determined)
2
pig-headed(determined, resolute, obstinate, uncompromising)
2
positive(clear, certain, definite, established)
2
refractory(tough, firm, unreasonable, grim)
2
single-minded(tough, firm, solid, determined)
2
stalwart
2
tight(strong, hard, secure, tough)
2
tireless
2
true
2
undaunted(firm, determined, bold, resolute)
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APASmart Define. (2015). unshakable thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unshakable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unshakable thesaurus" https://smartdefine.org/unshakable/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unshakable thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unshakable/thesaurus/synonyms>.
MLASmart Define. "unshakable thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/unshakable/thesaurus/synonyms>