217 entries under adjective topic. ×

1
persevering(strong, certain, definite, resolved)
1
persisting(persistent, continuous, endless, relentless)
1
pertinacious(determined, fixed, stubborn)
1
predetermined
1
pugnacious(hard, severe, rough, harsh)
1
regular(dull, set, steady, stable)
1
regularized(dull, steady, stable, regular)
1
reliable(calm, strong, secure, firm)
1
ruffianly(hard, severe, rough, harsh)
1
solid as rock(expression, idiom, steady, stable)
1
standardized(dull, steady, stable, regular)
1
static(set, severe, firm, harsh)
1
straight(even, rigid, inflexible, reliable)
1
taut(hard, severe, rough, harsh)
1
tenacious(strong, determined, definite, fixed)
1
together(calm, strong, secure, firm)
1
true(strong, flat, certain, determined)
1
unbroken(dull, steady, stable, regular)
1
uncontrollable(hard, severe, rough, harsh)
1
undiversified(set, regular, even, constant)
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APASmart Define. (2015). unalterable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unalterable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unalterable thesaurus" https://smartdefine.org/unalterable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, unalterable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unalterable/thesaurus/synonyms>.
MLASmart Define. "unalterable thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/unalterable/thesaurus/synonyms>