Adjective impermanent has 2 senses
  1. impermanent, temporary - not permanent; not lasting; "politics is an impermanent factor of life"- James Thurber; "impermanent palm cottages"; "a temperary arrangement"; "temporary housing"
    Antonyms: permanent, lasting, abiding, enduring, imperishable, ageless, eternal, everlasting, perpetual, unending, unceasing, indissoluble, standing
  2. impermanent - existing or enduring for a limited time only
    Antonym:
    infinite (indirect, via finite)
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