Synonyms|468Antonyms|98|Broader|6Narrower|0Related|413

48 entries under permanent topic. ×

1
imperishable(adjective, stable, fixed, constant, enduring)
1
incessant(adjective, persistent, constant, continuous, endless)
1
indefinite(lasting, everlasting, unending, undying)
1
interminable(adjective, persistent, constant, continuous, endless)
1
termless(lasting, everlasting, unending, undying)
1
unceasing(adjective, persistent, constant, continuous, endless)
1
without end(expression, lasting, everlasting, unending)
0
neverending(adjective, persistent, continuous, endless, relentless)
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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>