Definition of vital
1a : of the utmost importance a vital clue vital resourcesb : 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
2a : concerned with or necessary to the maintenance of life vital organs blood and other vital fluidsb : 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
vitallyplay \ˈvī-təl-ē\ adverb
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 of vital from the Web
Invasive testing provides details vital to the computer modeling and scientifically simulated plutonium behavior that has replaced nuclear testing, said DOE consultant David Overskei.
The real problem is to see whether human nature can become generous enough to create vital societies with or without technology.
In finding that imports of those materials were not vital to national security, the administration of George W. Bush looked at usage in a range of industries as well as defense, including energy and telecommunications.
But the need for critical thinking, clear writing, appreciation of culture, and knowledge of history is more vital than ever.
Connections are key, and networking is a vital necessity in creating and sustaining opportunities.
This is why research done by educators and LGBT members of NPHC organizations is even more vital in order to move forward.
OUL presents erudite and impassioned lectures (and the occasional panel discussion) by academics and activists on a range of issues vital to old lefties and, especially now, to all of us.
The anesthesiologist monitors the patient’s sedation level and vital signs.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vital'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Synonym Discussion of vital
VITAL Defined for English Language Learners
Definition of vital for English Language Learners
: extremely important
: needed by your body in order to keep living
: very lively or energetic
VITAL Defined for Kids
Definition of vital for Students
1 : concerned with or necessary to the continuation of life The heart and lungs are vital organs.
2 : full of life and energy At 80, he's still an active and vital man.
3 : very important a vital clue
vitallyadverb These are vitally needed supplies.
Medical Definition of vital
1a: existing as a manifestation of lifeb: 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
Seen and Heard
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