absolutely required and not to be used up or sacrificed
absolutely necessary; vitally necessary; "essential tools and materials"; "funds essential to the completion of the project"; "an indispensable worker"
being or relating to or containing the essence of a plant etc; "essential oil"
totally and definitely; without question; "we are absolutely opposed to the idea"; "he forced himself to lie absolutely still"; "iron is absolutely necessary"
completely and without qualification; used informally as intensifiers; "an absolutely magnificent painting"; "a perfectly idiotic idea"; "you're perfectly right"; "utterly miserable"; "you can be dead sure of my innocence"; "was dead tired"; "dead right"