Definitions

optimism

[op-tuh-miz-uhm] / ˈɒp təˌmɪz əm /

NOUN

state of having positive beliefs

Synonyms

STRONGEST

anticipation certainty confidence elation enthusiasm expectation happiness idealism trust

STRONG

assurance brightness buoyancy calmness cheer cheerfulness easiness encouragement exhilaration hopefulness positivism sanguineness sureness

WEAK

good cheer looking on bright side rose-colored glasses

Antonyms

STRONGEST

depression distrust doubt fear sadness sorrow uncertainty unhappiness

STRONG

discouragement gloom

WEAK

hopelessness pessimism

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.

Lebanese President Joseph Aoun voiced cautious optimism, saying he hoped the negotiations would "mark the beginning of the end of the suffering of the Lebanese people."

From BBC • Apr. 15, 2026

Global stocks rose and oil pulled back below $100 on optimism that peace talks to end the Middle East conflict would resume.

From The Wall Street Journal • Apr. 14, 2026

Investors watch oil prices closely as a sudden spike can lead to a recession, he said, but recent trading action highlighted optimism that the energy-supply disruption triggered by the Iran conflict might be short-lived.

From MarketWatch • Apr. 14, 2026

“We expect optimism from U.S. managements,” wrote Capital Alpha Partners analyst Byron Callan in a Monday report, citing the recent $1.5 trillion fiscal year 2027 budget request and replacement demand for missiles and drones.

From Barron's • Apr. 13, 2026

But optoomuchism is optimism taken much, much too far.

From "The Hidden Gallery" by Maryrose Wood

Vocabulary lists containing optimism

Words for a New Year

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Power Suffix: -ism

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Starting Your New Life: Inspiring Words from Commencement Speeches

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