Rapid and transient (8)
I believe the answer is:
fleeting
(Other definitions for fleeting that I've seen before include "fast" , "Momentary" , "Passing quickly, transitory" , "Ephemeral" , "Evanescent" .)
I believe the answer is:
fleeting
(Other definitions for fleeting that I've seen before include "fast" , "Momentary" , "Passing quickly, transitory" , "Ephemeral" , "Evanescent" .)