Synonyms of fleeting

1 Syllable

short, toyer, fast, pdq, flying

2 Syllables

fasted, snubber, shortest, supplier, littler, hastiest, fading, fastest, shrimpy, smallish, hastier, shortterm, hasty, short-term, transient, short-haul, short-run, flitting, lamster, sudden, chop-chop, passing, faster

3 Syllables

overnight, deciduous, shortlived, vanishing, cursory, short-lived, fugacious, fly-by-night, curtate, short-range, double-time, screamin', meteoric

4 Syllables

hypersonic, evanescent, volatile, elusive, ephemeral, fugitive, temporary, elusory, momentary, transitory, impermanent, decurtate, unsustained, unprolonged

5 Syllables

unsustainable