1
continuing
1
decided(adjective, certain, limited, definite, inflexible)
1
defined(adjective, certain, limited, definite, inflexible)
1
definite(adjective, certain, limited, inflexible, restricted)
1
definitive(adjective, certain, limited, definite, inflexible)
1
determined(adjective, inflexible)
1
diligent
1
faithful
1
final
1
hard(adjective, inflexible)
1
implacable(adjective, inflexible)
1
in the bag(expression, adjective, idiom, certain, limited)
1
incurable
1
indefatigable
1
industrious
1
inexorable(adjective, inflexible)
1
insistent
1
intent(adjective, certain, limited, definite, inflexible)
1
intractable(adjective, inflexible)
1
invariant
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APASmart Define. (2015). inalterable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/inalterable/thesaurus/synonyms
ChicagoSmart Define. 2015. "inalterable thesaurus" https://smartdefine.org/inalterable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, inalterable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/inalterable/thesaurus/synonyms>.
MLASmart Define. "inalterable thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/inalterable/thesaurus/synonyms>