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Synonyms

utmost

American  
[uht-mohst, -muhst] / ˈʌtˌmoʊst, -məst /

adjective

  1. of the greatest or highest degree, quantity, or the like; greatest.

    of the utmost importance.

    Synonyms:
    major, chief, foremost, maximum
  2. being at the farthest point or extremity; farthest.

    the utmost reef of the island.


noun

  1. Also the greatest degree or amount.

    the utmost that can be said;

    The hotel provides the utmost in comfort.

  2. the most or best of one's abilities, powers, etc..

    He did his utmost to finish on time.

  3. the extreme limit or extent.

    His patience was taxed to the utmost.

utmost British  
/ ˈʌtˌməʊst /

adjective

  1. of the greatest possible degree or amount

    the utmost degree

  2. at the furthest limit

    the utmost town on the peninsula

"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. the greatest possible degree, extent, or amount

    he tried his utmost

"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

Etymology

Origin of utmost

First recorded before 900; Middle English utmest, Old English ūtemest; equivalent to out + -most

Explanation

Utmost means "the greatest extent or amount." When you work as hard as you possibly can, you do your utmost to accomplish your goal. Whenever something is the most, it can be described as the utmost. If a message is of the utmost importance, it's as important as it possibly can be. Any time you want to really want to emphasize that you believe in something more than anything else or truly intend to do something, do your utmost to use the word utmost.

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Vocabulary lists containing utmost

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:

They are requesting the Justice Department review the matter “expeditiously and with the utmost seriousness,” and bring criminal charges against Wright if warranted.

From Los Angeles Times Aug. 5, 2026

As law, policy and regulation have penetrated deeper into every facet of life, the First Amendment right “to petition the government for the redress of grievances” has become of utmost importance.

From The Wall Street Journal Jul. 9, 2026

Such a high-profile referee is not going to act without the utmost integrity.

From BBC Jul. 8, 2026

When contacted by AFP, the Israeli police said it was "treating every one of these incidents with the utmost seriousness", including setting up "specialised joint task forces" and meeting with local community leaders.

From Barron's Jul. 5, 2026

Once they were kept in containers marked with skull and crossbones; the infrequent occasions of their use were marked with utmost care that they should come in contact with the target and with nothing else.

From "Silent Spring" by Rachel Carson

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