To contradict, to provide proof that something is not.
Weak or ill, not in good health.
Irresolute; weak of mind or will.
Frail; unstable; insecure.
Invigorating or life-giving.
Very important.
Containing life; living.
Necessary to continued existence.
Necessary to the continuation of life; being the seat of life; being that on which life depends.
Capable of living; in a state to live; viable.
Relating to the recording of life events.
Relating to, or characteristic of life.