optimism

noun

op·​ti·​mism ˈäp-tə-ˌmi-zəm How to pronounce optimism (audio)
Synonyms of optimism
1
: a doctrine that this world is the best possible world
2
: an inclination to put the most favorable construction upon actions and events or to anticipate the best possible outcome
expressed optimism about the future of the business
the optimism of cheerleaders

Synonyms of optimism

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Examples of optimism in a Sentence

Both of them expressed optimism about the future of the town. The early sales reports are cause for optimism. There is growing optimism that the problem can be corrected. He maintains a sense of optimism, despite all that has happened.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Original Series, Walter helped inspire audiences with his optimism, humor, and adventurous spirit. — Victoria Edel, PEOPLE, 26 Oct. 2026 There’s optimism Hurts will have a full recovery and will return to the NFL field. — Michael McCann, Sportico.com, 26 Oct. 2026 Wages increases also have not translated to optimism among voters, though, and Democratic messaging ahead of the midterms have been focused on affordability. — Dylan Lysen, Kansas City Star, 26 Oct. 2026 That optimism seems caught Shanahan off guard, given how carefully Bosa usually assesses his own status. — Chantz Martin Outkick, FOXNews.com, 25 Oct. 2026 See All Example Sentences for optimism

Word History

Etymology

borrowed from French optimisme, from Latin optimum "the best, optimum" + French -isme -ism

First Known Use

1759, in the meaning defined at sense 1

Time Traveler
The first known use of optimism was in 1759

Rhymes for optimism

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Browse Nearby Words

optimisation
optimism
optimist
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Cite this Entry

“Optimism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optimism. Accessed 28 Oct. 2026.

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Kids Definition

optimism

noun
op·​ti·​mism ˈäp-tə-ˌmiz-əm How to pronounce optimism (audio)
: a habit of expecting everything to turn out for the best

Medical Definition

optimism

noun
op·​ti·​mism ˈäp-tə-ˌmiz-əm How to pronounce optimism (audio)
: an inclination to put the most favorable construction upon actions and events or to anticipate the best possible outcome
optimist
-məst How to pronounce optimism (audio)
noun
optimistic
ˌäp-tə-ˈmis-tik How to pronounce optimism (audio)
adjective
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