Synonyms|198Antonyms|1|Broader|0Narrower|0Related|20
1
lifelong(adjective, persistent, continuous, hardened, lasting)
1
long
1
longeval
1
longevous
1
longstanding
1
longtime
1
macrobiotic
1
mythological
1
obstinate(persistent, continuous, hardened, lasting, continuing)
1
of long duration(expression, idiom)
1
of long standing(expression, idiom)
1
of the folk(expression, idiom)
1
oral
1
perduring
1
prescriptive
1
prolonged(persistent, lasting, remaining)
1
protracted(persistent, continuous, lasting, continuing, remaining)
1
received
1
recognised
1
recognized
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APASmart Define. (2015). long-standing thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/long-standing/thesaurus/synonyms
ChicagoSmart Define. 2015. "long-standing thesaurus" https://smartdefine.org/long-standing/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, long-standing thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/long-standing/thesaurus/synonyms>.
MLASmart Define. "long-standing thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/long-standing/thesaurus/synonyms>