momentary

adjective

mo·​men·​tary ˈmō-mən-ˌter-ē 

1

a

: continuing only a moment : fleeting

b

: having a very brief life

2

: operative or recurring at every moment

momentariness noun

Synonyms

• flash
• brief
• temporary
• transient
• passing
• fleeting

Choose the Right Synonym for momentary

transient, transitory, ephemeral, momentary, fugitive, fleeting, evanescent mean lasting or staying only a short time.

transient applies to what is actually short in its duration or stay.

a hotel catering primarily to transient guests

transitory applies to what is by its nature or essence bound to change, pass, or come to an end.

fame in the movies is transitory

ephemeral implies striking brevity of life or duration.

many slang words are ephemeral

momentary suggests coming and going quickly and therefore being merely a brief interruption of a more enduring state.

my feelings of guilt were only momentary

fugitive and fleeting imply passing so quickly as to make apprehending difficult.

let a fugitive smile flit across his face

fleeting moments of joy

evanescent suggests a quick vanishing and an airy or fragile quality.

the story has an evanescent touch of whimsy that is lost in translation

Examples of momentary in a Sentence

He experienced a momentary loss of consciousness.

the pain of the flu shot was only momentary

Recent Examples on the Web

Because all of the major waves of selling in the wake of some incident of uncertainty were caused by momentary risk that did not ultimately threaten stocks, or the banking system — or, ultimately, the economy. —Jim Cramer, CNBC, 23 June 2025

The two benches and dugouts cleared as the two men made momentary physical contact, sparking a brown and blue mosh pit of sorts behind home plate to cap a series that left both sides more black and blue and chapped than anything else. —Dennis Lin, New York Times, 20 June 2025

This is more than a momentary victory: under Israeli law, the bill’s failure means that no other proposal to dissolve the Knesset (parliament) can be introduced for six months, buying Netanyahu and his coalition some time. —Rachel Wolf, FOXNews.com, 12 June 2025

Bankrolling cybersecurity may soothe momentary leadership angst, but often does little to address rising insider threats and basic internal control failures. —Noah Barsky, Forbes.com, 11 June 2025

Word History

First Known Use

15th century, in the meaning defined at sense 1a

Rhymes for momentary

• accessary
• adversary
• ancillary
• arbitrary
• aviary
• axillary
• beriberi
• breviary
• budgetary
• capillary
• catenary
• cautionary

Kids Definition

momentary

adjective

mo·​men·​tary ˈmō-mən-ˌter-ē 

: lasting only a moment