optimism

noun

op·​ti·​mism ˈäp-tə-ˌmi-zəm 

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

• hopefulness
• brightness
• cheerfulness

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

As a player and a leader, Welbeck appeals to Chelsea manager Xabi Alonso and — although the situation remains at an early stage — there is optimism on all sides that a deal could be done. — David Ornstein, New York Times, 27 July 2026

But Plaschke reported his philosophy has quickly forged deep roots in Westwood, where Chesney’s optimism fits in seamlessly at the school built on John Wooden’s Pyramid of Success. — Sports Editor, Los Angeles Times, 27 July 2026

Conceived as a symbol of light, optimism and individuality, the emblem has become a recurring signature across the house’s accessories. — Thomas Waller, Footwear News, 27 July 2026

Even Chris Evans’ comeback as Steve Rogers could inspire cautious optimism. — Alison Foreman, IndieWire, 26 July 2026

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

Rhymes for optimism

• autism
• fascism
• racism
• sikhism
• sophism
• statism
• sufism
• thomism
• tourism
• tropism
• abolitionism
• aldosteronism

Kids Definition

optimism

noun

op·​ti·​mism ˈäp-tə-ˌmiz-əm 

: a habit of expecting everything to turn out for the best

Medical Definition

optimism

noun

op·​ti·​mism ˈäp-tə-ˌmiz-əm 

: an inclination to put the most favorable construction upon actions and events or to anticipate the best possible outcome

optimist

-məst 

noun

optimistic

ˌäp-tə-ˈmis-tik 

adjective