0
recurring(adjective, continuous, everlasting, uninterrupted)
0
refillable
0
reliable
0
returnable
0
rooted
0
routine
0
seaworthy
0
secure
0
set in concrete(expression, stable, constant, enduring, lasting)
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set in stone(expression, idiom, stable, constant, lasting)
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settled(adjective, hardened, confirmed, chronic)
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shatter-proof
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tedious(long, drawn-out)
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time-honored(familiar, established, long-established)
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tiresome(long, drawn-out)
0
unabating
0
unchanged
0
unmitigated
0
unremitting(continuous, permanent, everlasting, uninterrupted, long-term)
0
unwavering
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APASmart Define. (2015). long-lasting thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/long-lasting/thesaurus/synonyms
ChicagoSmart Define. 2015. "long-lasting thesaurus" https://smartdefine.org/long-lasting/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, long-lasting thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/long-lasting/thesaurus/synonyms>.
MLASmart Define. "long-lasting thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/long-lasting/thesaurus/synonyms>