212 entries under adjective topic. ×

4
sound(strong, hard, secure, continue)
4
tough(mean, strong, hard, firm)
4
undeviating
3
changeless(clear, certain, definite, unquestionable)
3
hard(mean, strong, tough, harsh)
3
immobile(strong, secure, steady, substantial)
3
immutable
3
incontrovertible(clear, certain, definite, unquestionable)
3
regular
3
resistant(determined, resolute, obstinate, uncompromising)
3
trusty
3
unchanging(clear, firm, solid, certain)
3
unquestioning(clear, certain, definite, obedient)
3
unvarying(clear, certain, definite, unquestionable)
2
assured(certain, bold, confident, unquestionable)
2
bold(firm, determined, resolute, confident)
2
certain(clear, complete, firm, definite)
2
dauntless(determined, bold, resolute, confident)
2
decided(clear, firm, certain, definite)
2
definite(clear, strong, complete, firm)
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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>