impermanency

n.

非永久（性），短暂（性）；

The impermanency of definitions
SONG FOR IMPERMANENCY-1942
The battle of impermanency
The Impermanency of Royal Capitals in Ethiopia
The Natural Impermanency of Most Temperate Wetlands
Impermanency and Permanency A glimpse on international sculpture camp
Impermanency of Initial Cells inHuperzia lucidula(Huperziaceae) Shoot Apices
Impermanency and Momentariness in the Philosophy of Yogacara-vijnanavada School
Method of colored wool stretch refining and impermanency shaping
Solidity,Temporality,Uncertainty and Certainty—On Analysis of Impermanency and Uncertainty of Toyo Ito's Construction