vital

vitalとは　意味・定義・例文

Adjective 形容詞

1. of or relating to life

生命の, 生命に関する

2. absolutely necessary for life

命にかかわる

Check her vital signs(=most important medical sings, such as body pressure, pulse, temperature, respiration, that indicate the state of a patient's essential body functions).

3. extremely important and essential in order to succeed

極めて重大な, 必須の

It is vital that action is taken quickly.