Synonyms|155Antonyms|14|Broader|0Narrower|0Related|223
1
invariable(stable, fixed, constant, enduring, lasting)
1
inveterate
1
inviolate
1
long-lived
1
long-standing
1
long-term
1
longeval
1
longevous
1
macrobiotic
1
of long duration(expression, idiom)
1
of long standing(expression, idiom)
1
persisting
1
quiescent
1
relentless(lasting, permanent, everlasting, unending, undying)
1
remaining
1
sempervirent
1
sempiternal(adjective, eternal, perpetuity)
1
set(stable, fixed, constant, enduring, lasting)
1
set in concrete(expression, stable, constant, vast, enduring)
1
set in stone(expression, idiom, stable, constant, lasting)
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APASmart Define. (2015). unfading thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unfading/thesaurus/synonyms
ChicagoSmart Define. 2015. "unfading thesaurus" https://smartdefine.org/unfading/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, unfading thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unfading/thesaurus/synonyms>.
MLASmart Define. "unfading thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/unfading/thesaurus/synonyms>