optimistic
AmericanOther Word Forms
Derived Forms
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superoptimisticadjective
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antioptimisticaladjective
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unoptimisticaladjective
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semioptimisticadjective
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antioptimisticallyadverb
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antioptimisticadjective
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nonoptimisticallyadverb
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preoptimisticadjective
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nonoptimisticaladjective
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overoptimisticadjective
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optimisticallyadverb
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unoptimisticallyadverb
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nonoptimisticadjective
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unoptimisticadjective
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semioptimisticallyadverb
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overoptimisticallyadverb
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
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Positive Words to Describe a Person
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ACT Reading Test: Words to Capture Tone, List 1
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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.
Yet just days after they reached an agreement for “Tower,” Greenwald was fired and replaced by a new leader, Elliot Grainge, about whom the band felt less than optimistic.
From Los Angeles Times • Jun. 5, 2026
With regards to current warning flags, they said valuations across several segments of the market are looking stretched, and investor sentiment is increasingly optimistic.
From MarketWatch • Jun. 5, 2026
"There's a lot of mystery and things that are undisclosed but I've become more optimistic that people are going to be able to discover things that we have not been allowed to discover."
From BBC • Jun. 4, 2026
Nothing prevents other auto makers with excess battery capacity due to overly optimistic EV forecasts from doing something similar, though.
From Barron's • Jun. 3, 2026
Farmer had many reasons to be optimistic when he returned to Boston and the Brigham in the summer of 1991.
From "Mountains Beyond Mountains" by Tracy Kidder and Michael French
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Definitions 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.