1.
[syn: fleeting, fugitive, momentaneous, momentary]
The Collaborative International Dictionary of English v.0.48:
Momentary \Mo"men*ta*ry\, a. [L. momentarius. See Moment.]
Done in a moment; continuing only a moment; lasting a very
short time; as, a momentary pang.
[1913 Webster]
This momentary joy breeds months of pain. --Shak.
[1913 Webster]
WordNet (r) 3.0 (2006):
momentary
adj 1: lasting for a markedly brief time; "a fleeting glance";
"fugitive hours"; "rapid momentaneous association of
things that meet and pass"; "a momentary glimpse" [syn:
fleeting, fugitive, momentaneous, momentary]