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ideal

American  
[ahy-dee-uhl, ahy-deel] / aɪˈdi əl, aɪˈdil /

noun

  1. a conception of something in its perfection.

    Synonyms:
    epitome
  2. a standard of perfection or excellence.

    Synonyms:
    epitome
  3. a person or thing conceived as embodying such a conception or conforming to such a standard, and taken as a model for imitation.

    Thomas Jefferson was his ideal.

  4. an ultimate object or aim of endeavor, especially one of high or noble character.

    He refuses to compromise any of his ideals.

    Synonyms:
    objective, intention
  5. something that exists only in the imagination.

    To achieve the ideal is almost hopeless.

  6. Mathematics. a subring of a ring, any element of which when multiplied by any element of the ring results in an element of the subring.


adjective

  1. conceived as constituting a standard of perfection or excellence.

    ideal beauty.

    Synonyms:
    complete, consummate, perfect
  2. regarded as perfect of its kind.

    an ideal spot for a home.

  3. existing only in the imagination; not real or actual.

    Nature is real; beauty is ideal.

    Synonyms:
    fantastic, fanciful, imaginary, illusory
  4. advantageous; excellent; best.

    It would be ideal if she could accompany us as she knows the way.

  5. based upon an ideal or ideals.

    the ideal theory of numbers.

  6. Philosophy.

    1. pertaining to a possible state of affairs considered as highly desirable.

    2. pertaining to or of the nature of idealism.

ideal British  
/ aɪˈdɪəl, ˌaɪdɪˈælɪtɪ /

noun

  1. a conception of something that is perfect, esp that which one seeks to attain

  2. a person or thing considered to represent perfection

    he's her ideal

  3. something existing only as an idea

  4. a pattern or model, esp of ethical behaviour

"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

adjective

  1. conforming to an ideal

  2. of, involving, or existing in the form of an idea

  3. philosophy

    1. of or relating to a highly desirable and possible state of affairs

    2. of or relating to idealism

"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

Synonym Usage

Ideal, example, model refer to something considered as a standard to strive toward or something considered worthy of imitation. An ideal is a concept or standard of perfection, existing merely as an image in the mind, or based upon a person or upon conduct: We admire the high ideals of a religious person. Sir Philip Sidney was considered the ideal in gentlemanly conduct. An example is a person or the conduct or achievements of a person regarded as worthy of being followed or imitated in a general way; or sometimes, as properly to be avoided: an example of courage; a bad example to one's children. A model is primarily a physical shape to be closely copied, but is also a pattern for exact imitation in conduct or character: They took their leader as a model.

Other Word Forms

Etymology

Origin of ideal

From the Late Latin word ideālis, dating back to 1605–15. See idea, -al 1

Explanation

An ideal is a model of something perfect or without equal. As an adjective, ideal describes this ultimate standard for excellence, or something that exists only as an idea. When we talk about what's ideal, we often refer to a best-case scenario (it would be ideal if you were well-rested before your exam); what we're striving for (it would be ideal for all children to receive an education); or some idea of perfection (the ideal date would be dinner with your favorite movie star). If you have high ideals, you have very strong beliefs about what is good and right, and maybe even how best to save the world.

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Vocabulary lists containing ideal

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.

Because of their intense heat and radiation, these planets provide scientists with ideal natural laboratories for studying atmospheric chemistry and cloud behavior under extreme conditions.

From Science Daily • May 27, 2026

“The orchestra,” Noltemy explained, “believes in him as the ideal conductor who could take them to the next level.”

From Los Angeles Times • May 26, 2026

Her boho-style clothing designs can also be seen hanging up in the expansive walk-in closet, which features three separate storage islands, ideal for anyone with a large collection of fashions.

From MarketWatch • May 26, 2026

Such a low total in ideal batting conditions meant this was a relatively straightforward chase for England's batters.

From BBC • May 25, 2026

The new climate was ideal for Middle Eastern wheat and other cereals, which multiplied and spread.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

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