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Synonyms

calm

American  
[kahm, kahlm] / kɑm, kɑlm /

adjective

  • calmer,
    comparative
  • calmest
    superlative
  1. without rough motion; still or nearly still.

    a calm sea.

    Synonyms:
    motionless, quiet
  2. not windy or stormy.

    a calm day.

    Antonyms:
    tempestuous
  3. free from excitement or passion; tranquil.

    a calm face;

    a calm manner.

    Synonyms:
    self-possessed, serene, unruffled, placid
    Antonyms:
    agitated

noun

  1. freedom from motion or disturbance; stillness.

  2. Meteorology. wind speed of less than 1 mile per hour (0.447 meter per second).

  3. freedom from agitation, excitement, or passion; tranquility; serenity.

    We look forward to the calm of the island after the summer residents have all returned to the mainland.

    She faced the possibility of death with complete calm.

verb (used with object)

  • calms,
    present (3rd person singular)
  • calmed,
    past participle,  past
  • calming
    present participle
  1. to make calm.

    He calmed the excited dog.

    Synonyms:
    soften, soothe, mollify, assuage, allay, tranquilize, quiet, still

verb (used without object)

  • calms,
    present (3rd person singular)
  • calmed,
    past participle,  past
  • calming
    present participle
  1. to become calm (usually followed bydown ).

idioms

  1. calm before the storm. see calm before the storm.

calm British  
/ kɑːm /

adjective

  1. almost without motion; still

    a calm sea

  2. meteorol of force 0 on the Beaufort scale; without wind

  3. not disturbed, agitated, or excited; under control

    he stayed calm throughout the confusion

  4. tranquil; serene

    a calm voice

"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

noun

  1. an absence of disturbance or rough motion; stillness

  2. absence of wind

  3. tranquillity

"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

verb

  1. (often foll by down) to make or become calm

"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

Usage

What does calm mean? Calm describes something that is still or barely moving, like a pond or a lake. Calm can also describe something that is relaxed or free from excitement, as in Yolanda felt calmer after meditating for a few minutes. Calm can also be used to describe the weather. A calm day isn’t windy or stormy. In meteorology, calm is a wind speed that is less than 1 mile per hour. As a noun, calm typically describes a lack of motion or a stillness in an area where there once was motion or there will be motion. Calm can also describe a notable lack of excitement or agitation that was expected to be caused, as in Roberta believed the only way to approach a big task was with calm and patience. Finally, as a verb, to calm something or someone means to bring it to a pause. You might calm your barking dog by petting it and talking to it in a soothing voice. You might calm an angry friend by talking with them quietly and listening to what’s bothering them. Example: When you feel nervous in front of a crowd, try to look calm and you’ll soon feel calm.

Synonym Usage

Calm, collected, composed, cool imply the absence of agitation. Calm implies an unruffled state, especially under disturbing conditions: calm in a crisis. Collected implies complete inner command of oneself, usually as the result of an effort: He remained collected in spite of the excitement. One who is composed has or has gained dignified self-possession: pale but composed. Cool implies clarity of judgment along with apparent absence of strong feeling or excitement, especially in circumstances of danger or strain: so cool that he seemed calm.

Other Word Forms

Derived Forms

Inflected Forms

Adjectives

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of calm

First recorded in 1350–1400; Middle English noun and adjective calm(e), from Italian calma (noun), calmo (adjective), from Late Latin cauma “summer heat” (with l perhaps from Latin calēre “to be hot”), from Greek kaûma (stem kaumat- ) “burning heat”; akin to kaíein “to burn” ( see caustic); verb derivative of the noun

Explanation

Just saying the word calm reminds you of how it feels to be calm — steady, at rest, not agitated, chilled out, caaaaalllmmmm. Waters without waves? People without drama? Sounds calm. Some synonyms of the adjective calm are peaceful and even-tempered. As a verb, it describes making someone steady and still — in other words, calm. Taking a walk or calling a friend might help you calm down when you are upset. As a noun, calm is a state of peace or stillness — the calm of your neighborhood at daybreak or the calm you seek when you exercise.

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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:

Regional and international observers described the election day as largely peaceful and urged all sides to remain calm and respect the official process.

From BBC Aug. 18, 2026

Root, England's greatest batter and a veteran of 166 Tests, said he hoped his "natural persona" is suited to bringing a sense of calm to the men's national team.

From BBC Aug. 18, 2026

Yemen's years-long civil conflict killed tens of thousands of people, uprooted millions and drove the country to the brink of famine before a 2022 truce restored relative calm.

From Barron's Aug. 16, 2026

The Aegean Sea appeared calm as Austin Croteau waited to board her ferry.

From The Wall Street Journal Aug. 13, 2026

Somehow he had to mask his abject terror with a look of calm courage.

From "Storm Runners" by Roland Smith

“The center of social gravity has moved from the nightclub to the workout, the class and the calmer room.”

From MarketWatch Jul. 29, 2026

Stocks ended the week lower after volatility gave way to a calmer Friday.

From The Wall Street Journal Jul. 25, 2026

The ceramic work in other bathrooms is calmer, but the backyard amps the look with the pool’s fountain and spa.

From Los Angeles Times Jul. 21, 2026

She eventually settled her debts and says she feels much calmer as a result.

From BBC Jul. 18, 2026

She's much calmer now that we've had the sandwich.

From "The Sky at Our Feet" by Nadia Hashimi

Somehow, Root remained the calmest man on Vulture Street to deliver a moment that will endure regardless of the result.

From BBC Dec. 4, 2025

But the abrupt end of the calmest stretch in years rattled traders and left many betting that the swings will continue.

From The Wall Street Journal Oct. 17, 2025

Tesla is a silly company in stock market terms, even in the calmest of times.

From Slate Jul. 8, 2025

The calmest of stars was certainly feeling something, because he attacked Friday as if unleashed.

From Los Angeles Times Apr. 13, 2024

“If you please,” she said, summoning her calmest tone, “would someone bring me my copy of Edith-Anne Gets a Pony ? It is on the bookshelf, in its usual place.”

From "The Incorrigible Children of Ashton Place: Book I: The Mysterious Howling" by Maryrose Wood

He even calms people that think they don’t like dogs.

From Los Angeles Times Jul. 17, 2026

“When everything calms down and slows down a little bit, I need to get my hearing checked out,” Ganfield said.

From Los Angeles Times Jul. 9, 2026

"I thought I would lay low for a while and seek new employment once the situation calms," said Musa Hashimi, who worked as a machinist in a textile factory.

From Barron's Jul. 3, 2026

Her approach, it was claimed, "inflames rather than calms a situation" and "creates a culture of fear and anxiety".

From BBC Feb. 17, 2026

As my heart calms down, as my breath softens, I get up to work on my altar.

From "American Street" by Ibi Zoboi

“As soon as Friday evening rolled around, the fighting picked up, but by Sunday night and futures opening, things had calmed down.”

From MarketWatch Jun. 29, 2026

Fighting calmed down on Sunday as Israel asked its military to reduce combat operations.

From The Wall Street Journal Jun. 21, 2026

“We need to be more decisive; the win has calmed the nerves we’ve had over the last few days,” Mexico defender Israel Reyes said.

From Los Angeles Times Jun. 18, 2026

"Their last meeting is what calmed tempers," she said.

From Barron's Jun. 9, 2026

Mamá understood and calmed him down every time.

From "Breaking Through" by Francisco Jiménez

"It was very calming, very emotive at the right time. There are songs on there that did really blow me away."

From BBC Aug. 13, 2026

These efforts appear to have had little effect in calming markets, illustrated by this week’s sharp swings.

From The Wall Street Journal Jul. 31, 2026

By calming excessive smooth muscle activity, it could potentially help people with diarrhea-predominant IBD.

From Science Daily Jul. 30, 2026

Maybe this works, with the injection calming the knee long enough to get Ohtani through the season, or with the irritation waning.

From Los Angeles Times Jul. 19, 2026

When he felt the world tilting, Nathan took a few calming breaths.

From "Healer of the Water Monster" by Brian Young

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