Select the most appropriate ANTONYM of the given word.

MORTALITY

birth

The most appropriate antonym of the word "mortality" is birth.

• Mortality means "the state of being mortal; the inevitability of death."
• Birth means "the act of coming into existence; the beginning of life."

The other words do not have the opposite meaning of "mortality."

• Death is a synonym of mortality.
• Fatality and lethality are both related to death, but they do not mean the opposite of mortality. Fatality refers to a death that is caused by an accident or a disaster, while lethality refers to the degree to which something is likely to cause death.