Synonyms|468Antonyms|98|Broader|6Narrower|0Related|413
2
unfailing(set, regular, fixed, constant, rigid)
2
uninterrupted(adjective, dull, steady, stable, regular)
2
unrelenting(adjective, set, hard, stiff, persistent)
2
unremitting(adjective, persistent, constant, continuous, endless)
2
untiring
1
accordant
1
age-long
1
alike
1
all-knowing
1
all-powerful
1
all-seeing
1
all-wise
1
almighty
1
anchored(calm, strong, solid, steady, even)
1
ancient
1
antique
1
arbitrary(adjective, hard, severe, rough, harsh)
1
assiduous
1
automatic
1
boundless
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APASmart Define. (2015). immutable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/immutable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immutable thesaurus" https://smartdefine.org/immutable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, immutable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/immutable/thesaurus/synonyms>.
MLASmart Define. "immutable thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/immutable/thesaurus/synonyms>