Definitions

momentary

[moh-muhn-ter-ee] / ˈmoʊ mənˌtɛr i /

ADJECTIVE

brief, fleeting

Synonyms

STRONGEST

short-lived temporary transitory

WEAK

cursory dreamlike ephemeral evanescent flashing flitting flying fugacious fugitive gone in flash hasty impermanent impulsive in wink of an eye instantaneous like lightning passing quick shifting short spasmodic summary transient vanishing volatile

Antonyms

STRONGEST

lasting lengthy long-lived permanent

WEAK

long-lasting staying

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Another benefit these impromptu conversations offer: the momentary glow that comes from simply being acknowledged.

From The Wall Street Journal • Apr. 18, 2026

CrowdStrike Holdings is having a stellar month, and that hot run isn’t just a momentary blip, according to analysts at Morgan Stanley.

From Barron's • Apr. 2, 2026

Speaking to the BBC last year, she admitted to a momentary crisis of confidence.

From BBC • Mar. 26, 2026

Observing that momentary disappearance allows scientists to calculate the asteroid's position, speed, and shape with remarkable precision.

From Science Daily • Mar. 9, 2026

Caterpillars one after another I laid on my tongue, their char crisp bristle taste a sweet momentary salve to a body aching for protein.

From "The Poisonwood Bible" by Barbara Kingsolver

Vocabulary lists containing momentary

Chronically Dolores

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Brief

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

The Ink Witch

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!