instant

adj. immediate, instantaneous, quick; urgent, pressing; quickly prepared, needing little work or effort to be ready; present, current

n. moment, very short space of time; present moment; food or beverage which can be prepared in a very short amount of time; current month

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Noun
1. a very short time (as the time it takes the eye blink or the heart to beat); "if I had the chance I'd do it in a flash"
(synonym) blink of an eye, flash, heartbeat, jiffy, split second, trice, twinkling, wink, New York minute
(hypernym) moment, minute, second, bit
2. a particular point in time; "the moment he arrived the party began"
(synonym) moment, minute, second
(hypernym) point, point in time
(hyponym) climax, culmination

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Adjective
1. occurring with no delay; "relief was instantaneous"; "instant gratification"
(synonym) instantaneous, instant(a)
(similar) fast
2. in or of the present month; "your letter of the 10th inst"
(synonym) inst
(similar) present(a)
3. demanding attention; "clamant needs"; "a crying need"; "regarded literary questions as exigent and momentous"- H.L.Mencken; "insistent hunger"; "an instant need"
(synonym) clamant, crying, exigent, insistent
(similar) imperative

pref. instant, immediate, quickly prepared

adj. pressing, urgent

nm. moment, instant; second, minute; while