30 entries under duration topic. ×

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perdurable(adjective, eternity, longitude)
5
perennial(adjective, eternity, longitude)
5
permanent(adjective, eternity, longitude)
5
perpetual(adjective, eternity, longitude)
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persisting(adjective, eternity, longitude)
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stable(adjective, eternity, longitude)
5
unceasing(adjective, eternity, longitude)
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undying(adjective, eternity, longitude)
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unending(adjective, eternity, longitude)
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unremitting(adjective, eternity, longitude)
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APASmart Define. (-0001). long-term plan thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/long-term_plan/thesaurus/related
ChicagoSmart Define. -0001. "long-term plan thesaurus" https://smartdefine.org/long-term_plan/thesaurus/related (accessed September 29, 2026).
HarvardSmart Define -0001, long-term plan thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/long-term_plan/thesaurus/related>.
MLASmart Define. "long-term plan thesaurus" 30 November -0001. Web. 29 September 2026. <https://smartdefine.org/long-term_plan/thesaurus/related>