Synonyms|138Antonyms|0|Broader|0Narrower|0Related|0
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long-lived(familiar, established)
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long-time
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longtime(adjective, established, inveterate)
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old school(adjective, traditional)
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passed on
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perennial(familiar, established)
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perpetual(familiar, established)
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practiced(familiar, established)
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reassigned
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restationed
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sent
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solid(familiar, established)
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staying(familiar, established)
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steady(familiar, established)
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transferred
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unrepenting
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up to speed
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vintage(familiar, customary, established, traditional, habitual)
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APASmart Define. (2015). long-established thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/long-established/thesaurus/synonyms
ChicagoSmart Define. 2015. "long-established thesaurus" https://smartdefine.org/long-established/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, long-established thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/long-established/thesaurus/synonyms>.
MLASmart Define. "long-established thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/long-established/thesaurus/synonyms>