Thesaurus.com
Dictionary.com
Definitions

vital

[vahyt-l] / ˈvaɪt l /
ADJECTIVE
essential
Synonyms
STRONGEST
basic critical crucial decisive fundamental imperative important indispensable integral key meaningful necessary needed significant urgent
WEAK
bottom-line cardinal coal-and-ice constitutive heavy life-or-death meat-and-potatoes must-have nitty-gritty prerequisite required requisite underlined
Antonyms
STRONGEST
additional extra inessential insignificant meaningless minor needless nonessential optional secondary trivial uncritical unimportant unnecessary useless voluntary worthless
WEAK
dead dull insignficant sluggish
ADJECTIVE
lively
Synonyms
STRONGEST
dynamic energetic vibrant vigorous
WEAK
animated forceful lusty red-blooded spirited strenuous vivacious zestful
Antonyms
STRONGEST
dull idle inactive lethargic
WEAK
dead inessential insignficant sluggish trivial unimportant
ADJECTIVE
alive
Synonyms
WEAK
animate animated breathing generative invigorative life-giving live living quickening
Antonyms
WEAK
dead dull inessential insignficant sluggish trivial unimportant

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Such a shift is vital at this moment in history, when so much of modern life is designed to ask almost nothing of us.

From Slate • Apr. 4, 2026

About one fifth of the world's oil and gas passes through the vital shipping lane.

From BBC • Apr. 3, 2026

Gulf states that support military action feel that the consequences of having a hostile neighbor controlling such a vital conduit make it worth the risk, the Arab officials said.

From The Wall Street Journal • Apr. 1, 2026

They play a vital role in the ecosystem, eating rodents, such as ground squirrels, that often carry diseases such as hantavirus, plague and Lyme disease.

From Los Angeles Times • Apr. 1, 2026

The use of two people was vital in case Fournier noticed it was missing before he got off the train.

From "City Spies" by James Ponti

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.