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.

Some analysts such as Su are optimistic that demand will stay buoyant, given the deepening integration of AI tools into business operations.

From Barron's • Jun. 29, 2026

Architecture is the most optimistic of art forms, because to create spaces for living and working, for worshiping and governing, is by its nature a positive act.

From The Wall Street Journal • Jun. 27, 2026

“Ovarian cancer is relentless, but I will stay optimistic and determined in continuing to fight this battle,” Evert wrote.

From Los Angeles Times • Jun. 26, 2026

Its simple, optimistic message — polished with the help of BP’s sophisticated public relations expertise — had an irresistible allure.

From Salon • Jun. 26, 2026

I had some seed potatoes left; they looked pretty dried up, but I felt so optimistic and energetic I planted them anyway.

From "Z for Zachariah" by Robert C. O’Brien

Vocabulary lists containing optimistic

The SAT: Words to Capture Tone, List 1

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Positive Words to Describe a Person

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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!