imperishable

/IH0 M P EH1 R IH0 SH AH0 B AH0 L/
noun
  1. 1

    (in the plural) something that does not perish, or keeps for a long time

adjective
  1. 1

    Not perishable; not subject to decay; enduring permanently

    โ€œan imperishable monumentโ€

Source: https://en.wiktionary.org/wiki/imperishable