vital

Meanings

• urgently needed; absolutely necessary
  • "vital for a healthy society"
  • "of vital interest"
• performing an essential function in the living body
  • "vital organs"
  • "blood and other vital fluids"
  • "the loss of vital heat in shock"
  • "a vital spot"
• full of spirit
  • "a vital and charismatic leader"
• manifesting or characteristic of life
  • "a vital, living organism"
  • "vital signs"

Synonyms

critical, full of life, life-sustaining, lively