Synonyms of momentary

1 Syllable

short, quick, flying

2 Syllables

shortest, supplier, flashing, trivial, shortterm, fleeting, hasty, short-term, transient, short-haul, short-run, flitting, lamster, shifting, passing

3 Syllables

overnight, dreamlike, hair-trigger, deciduous, vanishing, cursory, spasmodic, short-lived, fugacious, fly-by-night, curtate, creatural, short-range, hairtrigger, summary, bipedal, meteoric

4 Syllables

evanescent, instantaneous, impulsive, volatile, trial-and-error, sublunary, ephemeral, fugitive, temporary, transitory, impermanent, decurtate, unsustained, unprolonged

5 Syllables

undetectable, unobservable, experimental, imperceptible, inappreciable, imponderable