vital Synonyms

critical lively needful required requisite resuscitative rompish salient serious significant significative spirited sprightful sprightly spry relevant quickening quick obligatory organic overriding overruling paramount perky physiological pivotal portentous prerequisite pressing primary principal strategic structural substantial axiological Bangui zestful life-and-death life-or-death life-sustaining bouncy peppy red-blooded meaningful newsworthy sporty world-shaking of the essence all important aboveground