momentary

I

(New American Roget's College Thesaurus)

adj. simultaneous, immediate (see instantaneity).

II

(Roget's IV) modif.

Syn. fleeting, flying, quick, summary, passing, flitting, flashing, transient, evanescent, fugitive, impermanent, shifting, spasmodic, ephemeral, vanishing, cursory, temporary, fugacious, like lightning, like a summer shower, bubblelike, dreamlike, gone in a flash*, in the bat of an eye*, in the wink of an eye*, quicker than one can say Jack Robinson*.

Ant. eternal*, continual, ceaseless.

See Synonym Study at transient .

III

(Roget's 3 Superthesaurus) a.

brief, fleeting, short-lived, transitory, ephemeral, transient, instantaneous, passing.

ANT.: long-lived, long, prolonged

IV

(Roget's Thesaurus II) adjective 1. Lasting or existing only for a short time: ephemeral, evanescent, fleet, fleeting, fugacious, fugitive, passing, short-lived, temporal, temporary, transient, transitory. See CONTINUE, TIME. 2. About to occur at any moment: imminent, impending, proximate. See NEAR.