Synonyms of momentary

momentary

adjective

ˈmō-mən-ˌter-ē 

as in flash

lasting only for a short time

the pain of the flu shot was only momentary

Synonyms & Similar Words

• flash
• brief
• temporary
• transient
• passing
• fleeting
• transitory
• ephemeral
• evanescent
• short
• little
• short-lived
• deciduous
• fugacious
• fugitive
• impermanent
• short-term
• acting
• interim
• provisional
• shortish

Antonyms & Near Antonyms

• permanent
• lasting
• eternal
• perpetual
• enduring
• unending
• everlasting
• endless
• immortal
• ceaseless
• undying
• lifelong
• timeless
• deathless
• persistent
• durable
• continuing
• long-lived
• dateless
• indestructible
• imperishable
• indefectible

Synonym Chooser

How is the word momentary different from other adjectives like it?

Some common synonyms of momentary are ephemeral, evanescent, fleeting, fugitive, transient, and transitory. While all these words mean "lasting or staying only a short time," 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

When might ephemeral be a better fit than momentary?

Although the words ephemeral and momentary have much in common, ephemeral implies striking brevity of life or duration.

many slang words are ephemeral

When would evanescent be a good substitute for momentary?

In some situations, the words evanescent and momentary are roughly equivalent. However, evanescent suggests a quick vanishing and an airy or fragile quality.

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

How are the words fugitive and fleeting related as synonyms of momentary?

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

let a fugitive smile flit across his face

fleeting moments of joy

Where would transient be a reasonable alternative to momentary?

The synonyms transient and momentary are sometimes interchangeable, but transient applies to what is actually short in its duration or stay.

a hotel catering primarily to transient guests

When is transitory a more appropriate choice than momentary?

The words transitory and momentary can be used in similar contexts, but 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

Example Sentences

Recent Examples of momentary

Jupiter Direct emphasizes the value of consistent, small habits, rather than momentary, flash-in-the-pan type efforts. —Tarot.com, Hartford Courant, 10 Mar. 2026

Crude oil’s momentary test of levels above $100 has forced a reckoning over the prospect of a 1970s-style stagflationary energy shock. —Dallas Morning News, 9 Mar. 2026

How the Mexican government navigates this tricky period may determine if the Mencho operation was a hopeful turning point or merely a momentary success. —Daniel Depetris, Mercury News, 26 Feb. 2026

How the Mexican government navigates this tricky period may determine if the Mencho operation was a hopeful turning point or merely a momentary success. —Daniel Depetris, Chicago Tribune, 24 Feb. 2026