vital
//ˈvaɪtəl//
Adjective
more vitalComparative
most vitalSuperlative
1
Absolutely necessary or essential for life, success, or a particular purpose
Water is vital for human survival.
2
Full of energy and enthusiasm; lively and animated
She gave a vital performance that captivated the entire audience.
3
Relating to or necessary for maintaining life
The heart and lungs are vital organs.