1
permanent
1
planned(adjective, certain, limited, definite, inflexible)
1
plumb(adjective, even, rigid, inflexible, reliable)
1
prearranged(adjective, certain, limited, definite, inflexible)
1
precise(adjective, certain, limited, definite, inflexible)
1
regular(adjective, set, even, constant, rigid)
1
resolute established(expression, adjective, certain, limited, definite)
1
resolved(adjective, certain, limited, definite, inflexible)
1
restricted(adjective, certain, limited, definite, inflexible)
1
rigged(adjective, certain, limited, definite, inflexible)
1
rigid(adjective, set, regular, even, constant)
1
rooted(adjective, secure, certain, steady, limited)
1
set(adjective, secure, certain, steady, limited)
1
set-up(adjective, certain, limited, inflexible, restricted)
1
settled(adjective, certain, limited, definite, restricted)
1
stable(adjective, secure, steady, fixed, even)
1
stated(adjective, certain, limited, definite, inflexible)
1
static(adjective, set, regular, even, constant)
1
steadfast(adjective, secure, certain, steady, limited)
1
steady(adjective, secure, certain, limited, definite)
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APASmart Define. (2015). unmodifiable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unmodifiable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unmodifiable thesaurus" https://smartdefine.org/unmodifiable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unmodifiable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unmodifiable/thesaurus/synonyms>.
MLASmart Define. "unmodifiable thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/unmodifiable/thesaurus/synonyms>