optimistic
AmericanOther Word Forms
-
antioptimisticadjective
-
antioptimisticaladjective
-
nonoptimisticadjective
-
nonoptimisticaladjective
-
overoptimisticadjective
-
preoptimisticadjective
-
semioptimisticadjective
-
superoptimisticadjective
-
unoptimisticadjective
-
unoptimisticaladjective
-
antioptimisticallyadverb
-
nonoptimisticallyadverb
-
optimisticallyadverb
-
overoptimisticallyadverb
-
semioptimisticallyadverb
-
unoptimisticallyadverb
Etymology
Origin of optimistic
Explanation
An optimistic person thinks the best possible thing will happen, and hopes for it even if it's not likely. Someone who's a tad too confident this way is also sometimes called optimistic. If you see the glass as half-full when others see it as half-empty; if you look on the bright side of things, you're optimistic. If the chain falls off your rusty old bicycle, a tire goes flat, the frame cracks down the middle, the seat keeps twisting around, and you say, "But look! The little bell still works — I'm sure this bike will be fine," you're being very optimistic, though some might venture to call you "delusional."
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!
List 4
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!
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.
Polls have long shown we’re among the most optimistic of Americans.
From Los Angeles Times ● Nov. 7, 2026
Like Susanto, Mortonson is optimistic on Micron’s long-term agreements with customers that allow it “tremendous visibility” through 2029.
From MarketWatch ● Nov. 6, 2026
Powell McCormick said Meta is more optimistic about expanding existing data centers and is considering building outside the U.S.
From The Wall Street Journal ● Nov. 5, 2026
Vice President JD Vance separately said that both he and the president were optimistic about securing an agreement.
From Barron's ● Nov. 3, 2026
Bongo thinks I’m too optimistic for such an old tree.
From "Wishtree" by Katherine Applegate
![]()
Random Word
Spin the wheel and learn a new word!
Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.