Definitions

optimistic

[op-tuh-mis-tik] / ˌɒp təˈmɪs tɪk /

ADJECTIVE

believing positively

Synonyms

STRONG

assured bright buoyant cheerful cheering confident encouraged expectant happy high hopeful hoping idealistic keeping the faith merry on cloud nine on top of world positive promising ray of sunshine rose-colored rosy sanguine sunny trusting utopian

Antonyms

STRONG

dejected depressed doubtful gloomy hopeless pessimistic sorrowful

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.

The US official last week said the administration was aware of the court case but "optimistic we can resolve objections".

From BBC • Jun. 9, 2026

DB remains optimistic about cloud operators and chip developers.

From The Wall Street Journal • Jun. 9, 2026

Musk has been optimistic about putting data centers in space, forecasting a two- or three-year timeline.

From MarketWatch • Jun. 8, 2026

Standing inside her store, surrounded by pastel ballgowns decorated with lace and rhinestones, Leonor felt optimistic.

From Los Angeles Times • Jun. 7, 2026

But Fiona’s upbeat and optimistic, and since we have five out of six classes together, she’s very familiar with the assignments.

From "The Running Dream" by Wendelin Van Draanen

Vocabulary lists containing optimistic

The SAT: Words to Capture Tone, List 1

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Positive Words to Describe a Person

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

ACT Reading Test: Words to Capture Tone, List 1

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!