Russian-English translations for необходи́мый

• vital
  vital energies; vital functions; vital actions
  The brain is a vital organ
  The transition to farming was vital for the creation of civilisation
• essential
  Don’t mind him being grumpy. That’s the essential Fred
• indispensable
  The law was moral and indispensable. -Bp. Burnet
  An indispensable component of a heart-healthy diet.
• necessary
  Although I wished to think that all was false, it was yet necessary that I, who thus thought, must in some sense exist
  It is absolutely necessary that you call and confirm your appointment
  If it is absolutely necessary to use public computers, you should plan ahead and forward your e-mail to a temporary, disposable account
• requisite
  Please submit the requisite papers before the end of the financial year