VITAL

adjective see: quick Date: 14th century 1. existing as a manifestation of life, concerned with or necessary to the maintenance of life , full of life and vigor ; animated , characteristic of life or living beings, 4. fundamentally concerned with or affecting life or living beings: as, tending to renew or refresh the living ; invigorating, destructive to life ; mortal , of the utmost importance , recording data relating to lives, of, relating to, or constituting the staining of living tissues, see: essential ~ly adverb