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dormant

American  
[dawr-muhnt] / ˈdɔr mənt /

adjective

  1. lying asleep or as if asleep; inactive, as in sleep; torpid.

    The lecturer's sudden shout woke the dormant audience.

    Synonyms:
    quiescent
    Antonyms:
    active, awake
  2. in a state of rest or inactivity; inoperative; in abeyance.

    The project is dormant for the time being.

    Synonyms:
    quiescent
  3. Biology. in a state of minimal metabolic activity with cessation of growth, either as a reaction to adverse conditions or as part of an organism's normal annual rhythm.

  4. Pathology. (of a disease) in an inactive phase but not cured; no longer exhibiting symptoms but perhaps only temporarily.

  5. undisclosed; unasserted.

    dormant musical talent.

    Synonyms:
    latent
  6. Geology. (of a volcano) not having erupted within the last 10,000 years, but having the probability of erupting again.

  7. Botany. temporarily inactive.

    dormant buds; dormant seeds.

  8. (of a pesticide) applied to a plant during a period of dormancy.

    a dormant spray.

  9. Heraldry. (of an animal) represented as lying with its head on its forepaws, as if asleep.


dormant British  
/ ˈdɔːmənt /

adjective

  1. quiet and inactive, as during sleep

  2. latent or inoperative

  3. (of a volcano) neither extinct nor erupting

  4. biology alive but in a resting torpid condition with suspended growth and reduced metabolism

  5. (usually postpositive) heraldry (of a beast) in a sleeping position

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

dormant Scientific  
/ dôrmənt /
  1. Being in an inactive state during which growth and development cease and metabolism is slowed, usually in response to an adverse environment. In winter, some plants survive as dormant seeds or bulbs, and some animals enter the dormant state of hibernation.

  2. Not active but capable of renewed activity. Volcanoes that have erupted within historical times and are expected to erupt again are dormant.


Synonym Usage

See inactive.

Other Word Forms

Etymology

Origin of dormant

First recorded in 1350–1400; Middle English dorma(u)nt, from Anglo-French, present participle of dormir, from Latin dormīre “to sleep”; see -ant

Explanation

That old dog was dormant for so long he was confused for a furry doormat, but a doormat is likely to stay dormant, or inactive, because it is lifeless: that old dog has some life in him yet. Volcanoes are described as dormant when they stay cool for a long time, without spewing hot lava and ash. They may have the ability to come to life, but they remain dormant, or inactive. Dormant comes from French dormir, "to sleep," and it refers to living things that are on a break rather than things that have died. Being dormant is being temporarily at rest, although sometimes, as with some cancer cells, things become permanently — and thankfully — dormant.

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Vocabulary lists containing dormant

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.

See Examples For:

At a media tour earlier this week, the massive Convention Center-scaled space was largely empty, save for dormant cranes, a scattering of workers and the occasional hum of drilling.

From Barron's Jul. 10, 2026

Rhode Island’s Morticia, named for the Addams Family matriarch, spent much of its life as a single leaf stalk with multiple leaflets before going dormant, leaving what looked like a big pot of dirt.

From The Wall Street Journal Jul. 10, 2026

Its latest set of dormant accounts were published last year, showing a zero balance.

From BBC Jul. 5, 2026

Instead, it may be a dormant capability that normally remains inactive during healing.

From Science Daily Jun. 17, 2026

As I see it today, the ability to read awoke inside me some long dormant craving to be mentally alive.

From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey

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