the GNU version of the Collaborative International Dictionary of English
n. The quality or state of being transitory; speedy passage or departure.
The Century Dictionary and Cyclopedia
n. The state of being transitory; short continuance; evanescence; transientness.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. an impermanence that suggests the inevitability of ending or dying
Word Usage
"The transitoriness is the same, and the eternal consequences are eternal alike in both; and yet there is a very solemn sense in which the one man's life has utterly perished, and the other's abides."