256 entries under adjective topic. ×

2
great(extraordinary, important, significant, deep)
2
hard and fast
2
historic(great, extraordinary, outstanding, remarkable)
2
homogeneous(persistent, continuous, endless, relentless)
2
irreversible
2
irrevocable
2
lengthened(great, deep, high, remote)
2
level
2
lifetime
2
livelong(durable, diuturnity)
2
living(verb, existing)
2
long-life
2
longstanding(vast, permanent, recurrent, perpetual)
2
memorable(significant, noteworthy)
2
monotonous(persistent, continuous, endless, relentless)
2
never-ending(constant, continuous, everlasting, eternal)
2
ongoing(current, permanent, long-term, lifelong)
2
recurrent(persistent, continuous, everlasting, uninterrupted)
2
reliable(calm, strong, tough, solid)
2
rooted(persistent, remaining)
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APASmart Define. (2016). lasting thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/lasting/thesaurus/synonyms
ChicagoSmart Define. 2016. "lasting thesaurus" https://smartdefine.org/lasting/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, lasting thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/lasting/thesaurus/synonyms>.
MLASmart Define. "lasting thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/lasting/thesaurus/synonyms>