31 entries under permanent topic. ×

2
perdurable(continuous, enduring, lasting, eternal)
1
forever(enduring, lasting, everlasting, perpetual)
1
in for the long haul(expression, enduring, lasting, perpetual)
1
inexhaustible(long-term, lifelong)
1
inexpungible(long-term, lifelong)
1
longstanding(recurrent, perpetual, long-term, lifelong)
1
old(recurrent, perpetual, long-term, lifelong)
1
ongoing(long-term, lifelong)
1
persisting(long-term, lifelong)
1
stable(adjective, enduring, lasting, perpetual)
1
till the cows come home(expression, idiom, long-term, lifelong)
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APASmart Define. (2016). undying thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/undying/thesaurus/synonyms
ChicagoSmart Define. 2016. "undying thesaurus" https://smartdefine.org/undying/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, undying thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/undying/thesaurus/synonyms>.
MLASmart Define. "undying thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/undying/thesaurus/synonyms>