잃어버리거나 손상되었을 때 다른 것으로 바꿀 수 없거나 그 가치가 매우 높아 대신할 수 없는
Impossible to replace if lost, damaged, or taken away due to being unique or extremely valuable.
예문:
"The museum houses several irreplaceable artifacts from the Ming Dynasty."
"Her unique perspective makes her an irreplaceable member of the team."
"Losing those family photos was devastating because they are truly irreplaceable."