vital

adjective

vi·​tal ˈvī-tᵊl How to pronounce vital (audio)
1
a
: of the utmost importance
a vital clue
vital resources
b
: fundamentally concerned with or affecting life or living beings: such as
(1)
: tending to renew or refresh the living : invigorating
(2)
: destructive to life : mortal
2
a
: concerned with or necessary to the maintenance of life
vital organs
blood and other vital fluids
b
: existing as a manifestation of life
3
: full of life and vigor : animated
4
: characteristic of life or living beings
5
: recording data relating to lives
6
: of, relating to, or constituting the staining of living tissues
vitally adverb
Choose the Right Synonym for vital

essential, fundamental, vital, cardinal mean so important as to be indispensable.

essential implies belonging to the very nature of a thing and therefore being incapable of removal without destroying the thing itself or its character.

conflict is essential in drama

fundamental applies to something that is a foundation without which an entire system or complex whole would collapse.

fundamental principles of algebra

vital suggests something that is necessary to a thing's continued existence or operation.

cut off from vital supplies

cardinal suggests something on which an outcome turns or depends.

a cardinal rule in buying a home

Examples of vital in a Sentence

These matters are vital to national defense. The sciences are a vital part of the school curriculum. your heart, lungs, and other vital organs Exercise keeps her young and vital.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The logic is sound for a business that relies on the skill and ideas of its people to find and develop new drug candidates, which is vital for long-term growth in pharmaceuticals. Jessica Coacci, Fortune, 9 Oct. 2025 Researchers hope the EpiSwitch® CFS test could soon become a vital diagnostic tool in clinical settings, offering more personalized and effective care for patients. Neetika Walter, Interesting Engineering, 9 Oct. 2025 The airport debuts with 800,000 tons of annual capacity, vital to Mumbai’s role as a pharmaceutical and e-commerce hub. Ayushi Shah, CNN Money, 8 Oct. 2025 Scleroderma is a rare and often life-threatening autoimmune condition that can cause fibrosis in the skin and other vital organs. Paul Grein, Billboard, 8 Oct. 2025 See All Example Sentences for vital

Word History

Etymology

Middle English, from Latin vitalis of life, from vita life; akin to Latin vivere to live — more at quick entry 1

First Known Use

14th century, in the meaning defined at sense 2b

Time Traveler
The first known use of vital was in the 14th century

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Cite this Entry

“Vital.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vital. Accessed 10 Oct. 2025.

Kids Definition

vital

adjective
vi·​tal ˈvīt-ᵊl How to pronounce vital (audio)
1
: concerned with or necessary to the continuation of life
the heart and lungs are vital organs
2
: full of vitality : animated
3
: characteristic of life or of living things
vital activities
4
: destructive of life : fatal
a vital wound
5
: of first importance
a vital clue
vitally adverb
Etymology

Middle English vital "alive, full of life, relating to life," from Latin vitalis "of life," from vita "life"

Medical Definition

vital

adjective
vi·​tal ˈvīt-ᵊl How to pronounce vital (audio)
1
a
: existing as a manifestation of life
b
: concerned with or necessary to the maintenance of life
vital organs
blood and other vital fluids
2
: characteristic of life or living beings
vital activities
3
: recording data relating to lives
vital records
4
: of, relating to, or constituting the staining of living tissues
vitally adverb

More from Merriam-Webster on vital

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