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Synonyms

optimism

American  
[op-tuh-miz-uhm] / ˈɒp təˌmɪz əm /

noun

  1. a disposition or tendency to look on the more favorable side of events or conditions and to expect the most favorable outcome.

    Synonyms:
    cheerfulness, hopefulness, confidence
    Antonyms:
    cynicism, pessimism
  2. the belief that good ultimately predominates over evil in the world.

    Antonyms:
    cynicism, pessimism
  3. the belief that goodness pervades reality.

  4. the doctrine that the existing world is the best of all possible worlds.


optimism British  
/ ˈɒptɪˌmɪzəm /

noun

  1. the tendency to expect the best and see the best in all things

  2. hopefulness; confidence

  3. the doctrine of the ultimate triumph of good over evil

  4. the philosophical doctrine that this is the best of all possible worlds

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • antioptimism noun
  • optimist noun
  • optimistic adjective
  • optimistically adverb
  • overoptimism noun

Etymology

Origin of optimism

First recorded in 1730–40; from French optimisme, from Latin optim(um) ( optimum ) + French -isme -ism

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 company's shares have surged some 220 percent over the past six months, while Samsung Electronics has risen about 130 percent, part of a huge global tech rally fuelled by optimism over AI.

From Barron's

Drugs known as immune checkpoint inhibitors, which target the PD-1/PD-L1 pathway, have led to long-lasting responses in some patients and fueled optimism about durable cancer control.

From Science Daily

“I like to strip images down to what people recognize instantly. The feeling comes first, then I’m focused on evoking optimism, color and joy.”

From Los Angeles Times

Investors have continued to pile into SK Hynix’s stock on optimism about its leading position in the AI memory market, sending shares 5.1% higher on Wednesday ahead of the earnings report.

From The Wall Street Journal

“There is an air of optimism, mixed with some realism,” Atencio said.

From The Wall Street Journal