vital

Synonyms: basic bottom-line cardinal coal-and-ice constitutive critical crucial decisive fundamental heavy imperative important indispensable integral key lifeor-death meaningful meat-and-potatoes name name-of-the-game necessary needed nitty-gritty prerequisite required requisite significant underlined urgent

Antonyms: inessential insignficant trivial unimportant

Synonyms: animated dynamic energetic forceful lusty red-blooded spirited strenuous vibrant vigorous vivacious zestful

Antonyms: dull sluggish

Synonyms: animate animated breathing generative invigorative life-giving live living quickening

Antonyms: dead