← DefinitionshareGuessvitaladjectiveAbsolutely necessary or essential for something to succeed or exist.nounA bodily organ or part that is essential for life (usually used in the plural 'vitals').SynonymsessentialadjectivecrucialadjectiveenergeticadjectivecriticaladjectiveAntonymsunnecessaryadjectivetrivialadjectivelethargicadjective