3
continual(adjective, stable, constant, enduring, lasting)
3
indestructible(adjective, stable, constant, enduring, unable)
3
timeless(vast, lasting, permanent, everlasting, eternal)
3
unceasing(lasting, permanent, everlasting, unending, perpetuity)
3
unending
3
unfailing(fixed, static, unchangeable)
3
unvarying(adjective, fixed, static, unchangeable)
2
aged
2
changeless(stable, fixed, constant, enduring, lasting)
2
continuing(fixed, static, unchangeable)
2
durable(stable, constant, enduring, lasting, perpetual)
2
fixed(stable, constant, enduring, lasting, static)
2
immutable(stable, fixed, constant, enduring, lasting)
2
interminable
2
long-lasting(stable, constant, enduring, lasting, durable)
2
never-dying
2
perdurable(stable, constant, enduring, lasting, permanent)
2
perduring(stable, constant, vast, enduring, lasting)
2
rigid(fixed, static, unchangeable)
2
stable(constant, enduring, lasting, perpetual)
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APASmart Define. (2015). unfading thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unfading/thesaurus/synonyms
ChicagoSmart Define. 2015. "unfading thesaurus" https://smartdefine.org/unfading/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unfading thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unfading/thesaurus/synonyms>.
MLASmart Define. "unfading thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/unfading/thesaurus/synonyms>