9 entries under vast topic. ×

2
lasting(adjective, permanent, recurrent, perpetual)
1
eternal(permanent, recurrent, perpetual, long-term)
1
everlasting(permanent, recurrent, perpetual, long-term)
1
forever(permanent, long-term, lifelong, diurnal)
1
in for the long haul(expression, idiom, permanent, long-term)
1
inexpungible(permanent, long-term, lifelong, diurnal)
1
long-term(permanent, lifelong, diurnal, ceaselessly)
1
permanent(recurrent, perpetual, long-term, lifelong)
1
till the cows come home(expression, idiom, permanent, long-term)
13 years ago|2.1k views|share |citing 
APASmart Define. (2013). longstanding thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/longstanding/thesaurus/synonyms
ChicagoSmart Define. 2013. "longstanding thesaurus" https://smartdefine.org/longstanding/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2013, longstanding thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/longstanding/thesaurus/synonyms>.
MLASmart Define. "longstanding thesaurus" 27 June 2013. Web. 24 September 2026. <https://smartdefine.org/longstanding/thesaurus/synonyms>