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.

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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

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dormant Scientific  

/ dôr′mənt /

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.

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Related Words

See inactive.

Other Word Forms

• dormancy noun
• nondormant adjective
• semidormant adjective

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.

Example Sentences

Unlike police drones dispatched after a 911 call, Mithril’s machines lie dormant in ceiling-mounted boxes, charging until a threat arrives.

From The Wall Street Journal • Apr. 5, 2026

Those same banks are teeming with relatively dormant deposits.

From Barron's • Mar. 30, 2026

Since my diagnosis, I’ve undergone multiple rounds of radiation therapy, chemotherapy, and immunotherapy, going in and out of periods of remission, when my cancer was temporarily dormant, many times.

From Slate • Mar. 29, 2026

Death Valley National Park is experiencing its best wildflower bloom in a decade, with dormant seeds awakened by recent rainfall and mild winter temperatures.

From Los Angeles Times • Mar. 17, 2026

Like the monster it had once commanded, it might have lain dormant there for centuries.

From "Harry Potter and the Deathly Hallows" by J.K. Rowling

Related Words

• asleep
• comatose
• inert
• inoperative
• latent
• passive
• sidelined
• sluggish