Synonyms of vital

1 Syllable
name, main, sound, key, chief, keyer
2 Syllables
pressing, urgent, vibrant, zoetic, zippier, basic, crucial, plasmic, living, livest, rooter, liver, lustier, biotic, heaton, sounder, pointful, mainer, chiefest, brawnier, needed, robust, soundest, heavy, well-done, heat-on, brawny, lived, grass-roots, grassroots, lusty, zippy, front-page
3 Syllables
important, frontpage, full-blooded, robustuous, robustious, underlying, kinetic, unfaded, vigorous, called-for, undecayed, newsworthy, red-blooded, vivacious, cardinal, momentous, alive, cellular, life-or-death, takeover, meaningful, capitals, organic, pivotal, primary, integral, amoebic, bottom-line, earth-shaking, virile, radical, critical, required, hurry-up, capital, life-and-death, take-charge, take-over, hard-driving, earthshaking, strategic, radicals, undimmed
4 Syllables
peaches-and-cream, unwithered, earthshattering, impressive, top-priority, animate, well-constructed, underlined, requisite, bottomline, coal-and-ice, name-of-the-game, significant, necessary, animated, all-important, earth-shattering, nitty-gritty, high-priority, decisive, fundamental, substrative, energetic
5 Syllables
meat-and-potatoes, anatomical, imperative, constitutional, pre-requisite, applicative, indispensable, prerequisite, constitutive, axiological