1
inoperative(adjective, inapplicable)
1
invalid(adjective, inapplicable)
1
invariable
1
iron(adjective, set, hard, stiff, rigid)
1
irrelative(adjective, inapplicable)
1
irrelevant(adjective, inapplicable)
1
mulish
1
nonapplicable(adjective, inapplicable)
1
nonconforming
1
nonobservant
1
not applicable(adjective, inapplicable)
1
recusant
1
relentless(adjective, hard, resolute, rigid, inflexible)
1
resolved
1
severe
1
single-minded(adjective, set, hard, stiff, rigid)
1
staunch(adjective, set, hard, stiff, rigid)
1
steadfast(adjective, set, hard, stiff, rigid)
1
steely(adjective, set, hard, stiff, rigid)
1
stringent(adjective, set, hard, stiff, rigid)
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APASmart Define. (2016). unadaptable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unadaptable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unadaptable thesaurus" https://smartdefine.org/unadaptable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, unadaptable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unadaptable/thesaurus/synonyms>.
MLASmart Define. "unadaptable thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/unadaptable/thesaurus/synonyms>