9 entries under existing topic. ×

27
lasting(adjective, continue, strain, firmness, labour)
26
enduring(adjective, continue, strain, firmness, labour)
24
durable(adjective, continue, strain, firmness, labour)
7
long-lasting(adjective, continue)
7
long-lived(adjective, continue, persistent, hardened, lasting)
6
abiding(adjective, continue, steady, even, hardened)
5
fixed(adjective, complete, true, persistent, customary)
4
traditional
2
long-established
11 years ago|2.3k views|share |citing 
APASmart Define. (2015). long-standing thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/long-standing/thesaurus/synonyms
ChicagoSmart Define. 2015. "long-standing thesaurus" https://smartdefine.org/long-standing/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, long-standing thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/long-standing/thesaurus/synonyms>.
MLASmart Define. "long-standing thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/long-standing/thesaurus/synonyms>