0
inextirpable
0
ingrained(adjective, hardened, confirmed, chronic)
0
interminable(long, continuous, everlasting, uninterrupted, drawn-out)
0
lengthened(long, drawn-out)
0
lengthy(long, drawn-out)
0
long-established(familiar, established)
0
long-winded(long, drawn-out)
0
longish(long, drawn-out)
0
longstanding(permanent, recurrent, perpetual, long-term, lifelong)
0
longtime
0
non-breakable
0
non-perishable
0
obstinate(adjective, hardened, confirmed, chronic)
0
overlong(long, drawn-out)
0
padded(long, drawn-out)
0
practiced(familiar, established, long-established)
0
prolix(long, drawn-out)
0
prolonged(adjective, long, drawn-out)
0
protracted(adjective, long, drawn-out)
0
recurrent(adjective, continuous, everlasting, uninterrupted, perpetual)
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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>