SINCE 1828

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split-second

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adjective split-sec·ond \ ˈsplit-ˈse-kənd \

Definition of split-second

1 :occurring in a split second

a split-second decision

2 :extremely precise

split-second timing

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See split-second defined for kids

First Known Use of split-second

1944

split-second Synonyms

Synonyms

immediate, instant, split-second, straightaway

Related Words

summary; fast, hit-and-run, prompt, quick, rapid, speedy, swift

Near Antonyms

dilatory, tardy; slow, sluggish; prolonged, protracted; deferred, delayed

split second

noun

Definition of split second

:a fractional part of a second :flash

See split second defined for English-language learners

See split second defined for kids

Examples of split second in a Sentence

In a split second, it was all over.
a devastating accident can cause everything in your life to change in a split second

First Known Use of split second

1912

split second Synonyms

Synonyms

beat, eyeblink, flash, heartbeat, jiff, jiffy, minute, moment, nanosecond, New York minute, second, shake, instant, trice, twinkle, twinkling, wink

Related Words

microsecond; snatch, spurt

Near Antonyms

aeon (or eon), age, eternity, forever; infinity, lifetime

SPLIT-SECOND Defined for English Language Learners

split-second

play

adjective

Definition of split-second for English Language Learners

: done very quickly
: very accurate or precise

split second

noun

Definition of split second for English Language Learners

: a very short period of time

Learn More about split-second

See words that rhyme with split-second Thesaurus: All synonyms and antonyms for split-second

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Examples: split-second in a Sentence