transient, fleeting; fugacious
fleeting; fugacious, fugitive
(adj.) = ephemeral ; fleeting ; meteoric ; evanescent ; short-lived [shortlived] ; transient ; vanishing ; hit-and-run.
Ex: Some books had to be rebound, some discarded and replaced on microfilm, and others, of ephemeral interest, received typed paper labels covered with Mylar tape.
Ex: From time to time librarians do catch a fleeting glimpse of how others see them when some journalist or academic does articulate this widespread phobia.
Ex: This article discusses the serious implications of published research on price comparisons, especially when periodical prices are experiencing a meteoric rise.
Ex: The flamboyance of the earliest modern face proved evanescent, and it was a restrained interpretation of the design, combining elements of both the English and the French modern faces, that prevailed.
Ex: Many centres were short-lived, so the picture was always in a state of flux.
Ex: The suppliers of this circulation system recommend that the readers are given numbers and names only, since it will not be cost-effective to store full addresses, particularly with a relatively transient population such as that of a university.
Ex: Librarians have a great role to play in the systematic collection of such material which constitutes a rich but vanishing source for the study of Nigeria's history.
Ex: The recent efforts by Congress to restrict invasions of privacy has many of the hallmarks of the typical Washington hit-and-run approach to legislation.
* durante un momento fugaz = for a passing moment.
* estrella fugaz = shooting star ; falling star ; rustling star.
* por un momento fugaz = for a passing moment.