- The definition of fleeting is passing by quickly.
An example of fleeting used as an adjective is the phrase a "fleeting interest," which means an interest that a person only has for a short period of time.
passing swiftly; not lasting
Origin of fleetingOld English fleotende, floating: see fleet
Passing quickly; ephemeral: a fleeting glimpse; a fleeting interest in the campaign.
- Present participle of fleet.