Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun instant

2 senses of instant

Sense 1
blink of an eye, flash, heartbeat, instant, jiffy, split second, trice, twinkling, wink, New York minute -- (a very short time (as the time it takes the eye to blink or the heart to beat); "if I had the chance I'd do it in a flash")
       => moment, mo, minute, second, bit -- (an indefinitely short time; "wait just a moment"; "in a mo"; "it only takes a minute"; "in just a bit")

Sense 2
moment, minute, second, instant -- (a particular point in time; "the moment he arrived the party began")
       => point, point in time -- (an instant of time; "at that point I had to leave")

Antonyms of adj instant

3 senses of instant

Sense 1
instantaneous, instant (prenominal) -- (occurring with no delay; "relief was instantaneous"; "instant gratification")

INDIRECT (VIA fast) -> slow -- (not moving quickly; taking a comparatively long time; "a slow walker"; "the slow lane of traffic"; "her steps were slow"; "he was slow in reacting to the news"; "slow but steady growth")

Sense 2
instant, inst -- (in or of the present month; "your letter of the 10th inst")

INDIRECT (VIA past, present) -> future -- (yet to be or coming; "some future historian will evaluate him")
INDIRECT (VIA present, future) -> past -- (earlier than the present time; no longer current; "time past"; "his youth is past"; "this past Thursday"; "the past year")

Sense 3
clamant, crying, exigent, insistent, instant -- (demanding attention; "clamant needs"; "a crying need"; "regarded literary questions as exigent and momentous"- H.L.Mencken; "insistent hunger"; "an instant need")

INDIRECT (VIA imperative) -> beseeching, pleading, imploring -- (begging)

Similarity of adj instant

3 senses of instant

Sense 1
instantaneous, instant (prenominal) -- (occurring with no delay; "relief was instantaneous"; "instant gratification")
       => fast (vs. slow) -- (acting or moving or capable of acting or moving quickly; "fast film"; "on the fast track in school"; "set a fast pace"; "a fast car")

Sense 2
instant, inst -- (in or of the present month; "your letter of the 10th inst")
       => present (prenominal) (vs. future) (vs. past) -- (temporal sense; intermediate between past and future; now existing or happening or in consideration; "the present leader"; "articles for present use"; "the present topic"; "the present system"; "present observations")

Sense 3
clamant, crying, exigent, insistent, instant -- (demanding attention; "clamant needs"; "a crying need"; "regarded literary questions as exigent and momentous"- H.L.Mencken; "insistent hunger"; "an instant need")
       => imperative (vs. beseeching) -- (requiring attention or action; "as nuclear weapons proliferate, preventing war becomes imperative"; "requests that grew more and more imperative")