Synonyms|160Antonyms|26|Broader|0Narrower|0Related|25
1
inveterate(adjective, certain, limited, definite, inflexible)
1
invincible
1
irrevocable
1
last
1
lasting
1
level(adjective, certain, limited, definite, inflexible)
1
limited(adjective, certain, definite, inflexible, restricted)
1
loyal
1
narrow(adjective, certain, limited, definite, inflexible)
1
never-failing(adjective, certain, limited, definite, inflexible)
1
never-tiring
1
obdurate(adjective, inflexible)
1
patient
1
perseverant
1
persevering
1
persistent
1
persisting
1
pertinacious
1
planned(adjective, certain, limited, definite, inflexible)
1
plodding
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APASmart Define. (2015). inalterable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/inalterable/thesaurus/synonyms
ChicagoSmart Define. 2015. "inalterable thesaurus" https://smartdefine.org/inalterable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, inalterable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/inalterable/thesaurus/synonyms>.
MLASmart Define. "inalterable thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/inalterable/thesaurus/synonyms>