transient

American  

[tran-shuhnt, -zhuhnt, -zee-uhnt] / ˈtræn ʃənt, -ʒənt, -zi ənt /

adjective

1. not lasting, enduring, or permanent; transitory.

2. lasting only a short time; existing briefly; temporary.

   transient authority.

   Synonyms:

   evanescent, fugitive, flying, fleeting

   Antonyms:

   permanent

3. staying only a short time.

   the transient guests at a hotel.

4. Philosophy. transeunt.

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noun

1. a person or thing that is transient, especially a temporary guest, boarder, laborer, or the like.

2. Mathematics.

   1. a function that tends to zero as the independent variable tends to infinity.

   2. a solution, especially of a differential equation, having this property.

3. Physics.

   1. a nonperiodic signal of short duration.

   2. a decaying signal, wave, or oscillation.

4. Electricity. a sudden pulse of voltage or current.

transient British  

/ ˈtrænzɪənt /

adjective

1. for a short time only; temporary or transitory

2. philosophy a variant of transeunt

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noun

1. a transient person or thing

2. physics a brief change in the state of a system, such as a sudden short-lived oscillation in the current flowing through a circuit

Related Words

See temporary.

Other Word Forms

• nontransient
  adjective
• nontransiently
  adverb
• nontransientness
  noun
• transience
  noun
• transiently
  adverb
• transientness
  noun
• untransient
  adjective
• untransiently
  adverb
• untransientness
  noun

Etymology

Origin of transient

First recorded in 1590–1600; from Latin trānsiēns “going across,” present participle of trānsīre “to go across, pass over”; see transit

Explanation

Use the adjective transient to describe something that always changes or moves around. If your older brother is constantly moving from city to city, you can say he's transient. Transient is most often used to modify nouns like nature, threat, source and cause, which suggests that the word often shows up in formal contexts, like analysis of finance or global terrorism. But it can also be used for anything that moves quickly from one thing to another, like a transient feeling or facial expression. Transient is also a noun meaning "a person who moves from place to place; a homeless person." The word comes from Latin transire, "to pass over," so you can think of it as describing things that are quickly passed over.

Example Sentences

Authorities immediately located 45-year-old Patrick Keys, a known transient in the area, and arrested him without incident, Bundy said.

From Los Angeles Times • Apr. 30, 2026

Housing markets and commodity prices are concerns, but amount to transient factors to be managed.

From Barron's • Apr. 23, 2026

The mission made significant discoveries, including the first data that show the existence of a transient third radiation belt, which can form during times of intense solar activity, Nasa said.

From BBC • Mar. 10, 2026

Constable’s oil sketches, most unintended for public consumption, could be just as large and daring, and were prized for their extraordinarily loose paint-handling, transient atmospheric effects and true-to-nature palettes, the fruit of his plein-air practice.

From The Wall Street Journal • Feb. 4, 2026

Since then, it had been gradually expanded until it had dozens of rooms for single miners or transient families.

From "October Sky" by Homer Hickam

Related Words

• ephemeral
• fleeting
• short-term
• transitory