Synonyms of split-second

split-second 1 of 2

adjective

ˈsplit-ˈse-kənd 

as in instantaneous

done or occurring without any noticeable lapse in time

a day trader who is used to making split-second decisions

Synonyms & Similar Words

• instantaneous
• immediate
• instant
• rapid
• straightaway
• summary
• swift
• quick
• speedy
• prompt
• hit-and-run
• fast

Antonyms & Near Antonyms

• slow
• prolonged
• sluggish
• protracted
• tardy
• dilatory
• deferred
• delayed

split second

2 of 2

noun

as in minute

a very small space of time

a devastating accident can cause everything in your life to change in a split second

Synonyms & Similar Words

• minute
• second
• moment
• heartbeat
• instant
• nanosecond
• trice
• twinkling
• shake
• twinkle
• wink
• beat
• jiffy
• New York minute
• flash
• microsecond
• eyeblink
• jiff
• snatch
• spurt

Antonyms & Near Antonyms

• age
• forever
• eternity
• lifetime
• eon
• infinity
• aeon

Examples of split-second in a Sentence

Recent Examples on the Web

Adjective

Observing the split-second decisions in racing and the precision of watchmaking has given me fresh perspectives on tackling challenges in my own field. —Brendan Keegan, Rolling Stone, 12 Sep. 2024

Autonomous vehicles could make split-second decisions by integrating visual, auditory, and textual data. —Sandy Carter, Forbes, 11 Sep. 2024

Noun

For a split second, your mind considers the possibilities: A truck driving by? —Rong-Gong Lin Ii, Los Angeles Times, 9 Aug. 2024

Keeping every muscle contracted during the split second on the table is vital to transferring energy efficiently for maximum height. —Tribune News Service, The Mercury News, 24 July 2024