Definition of "transitoriness"

Nor certainly is Pindar blind to the more pathetic aspects of humanity—its transitoriness, its sorrows, its ignorance, its moral frailty […]

1879, F. D. Morice, Pindar, chapter 12, page 198

The transitoriness perhaps makes viral content the most representative form of culture in the twenty-first century: […]

2022, W. David Marx, chapter 10, in Status and Culture, Viking