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impermanent

adjective
 
 
/ɪmˈpɜː.mə.nənt/ US  /-ˈpɝː-/

Definition

not lasting for ever or not lasting for a long time: Acrylic paint is quick-drying but impermanent.TemporaryShort in time impermanence
 
 
/-nəns/ noun [U]
the impermanence and fragility of lifeTemporaryShort in time
(Definition of impermanent adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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