WordWeb Online

1. Lasting for a markedly brief time
   "a fleeting glance";
   - fugitive, momentaneous, momentary

1. Move along rapidly and lightly; skim or dart
   "The hummingbird fleeted among the branches";
   - flit, flutter, dart
    
2. Disappear gradually
   - evanesce, fade, blow over, pass off, pass

See also: short

Type of: barrel [informal], belt [informal], belt along [informal], bucket [informal], bucket along [informal], disappear, go away, hasten, hie [archaic], hotfoot, hurry, pelt [informal], pelt along [informal], race, rocket [informal], rush, rush along, speed, step on it [informal], travel rapidly, vanish, whizz [informal], whizz along [informal], wing [informal], zip [informal], zoom, zoom along

Encyclopedia: Fleeting, John