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.

That seems like an overly optimistic assessment of its prospects.

From Barron's • Apr. 17, 2026

Analysts remain optimistic about TSMC’s ability to manage geopolitical risks, citing its supply-chain resilience and priority access to energy.

From The Wall Street Journal • Apr. 16, 2026

Potthoff and his team are optimistic that this research could lead to new treatments for both obesity and MASH.

From Science Daily • Apr. 16, 2026

He remains optimistic, however, saying that "the journey of a thousand miles begins with a step".

From BBC • Apr. 16, 2026

Damon Hininger, the president and chief operations officer of Corrections Corporation of America, the largest private-prison operator in the United States, is thoroughly optimistic.

From "The New Jim Crow" by Michelle Alexander

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

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!