pessimism

noun

pes·​si·​mism ˈpe-sə-ˌmi-zəm How to pronounce pessimism (audio)
also ˈpe-zə-
Synonyms of pessimismnext
1
: an inclination to emphasize adverse aspects, conditions, and possibilities or to expect the worst possible outcome
2
a
: the doctrine that reality is essentially evil
b
: the doctrine that evil overbalances happiness in life

Examples of pessimism in a Sentence

Although the economy shows signs of improving, a sense of pessimism remains.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
A lot of the pessimism and fear around AI is about what could happen, not what’s actually happening across the country. Diane Brady, Fortune, 1 July 2026 With many families increasingly financially pinched, some are turning to credit cards and other forms of debt to cover daily expenses, which could also contribute to their pessimism about the economy, Hanks said. Aimee Picchi, CBS News, 30 June 2026 And growing fears over diminishing job security in white-collar fields once thought of as safe are a key driver behind Americans’ growing pessimism about the economy. D. Brian Blank, The Conversation, 29 June 2026 Now, in an Emerson College poll that asked the same question, pessimism had jumped 26 points, to 41%, while optimism had ticked down to 42% − overall, a positive edge of a single point. Susan Page, USA Today, 22 June 2026 See All Example Sentences for pessimism

Word History

Etymology

borrowed from French pessimisme, from Latin pessimus "worst" + French -isme -ism, formed by analogy with optimisme optimism; Latin pessimus, probably going back to *pedisamos, derivative (with -isamos, superlative suffix, going back to Italic & Celtic *-ism̥mos) of *ped-, extracted from *ped-tu- "a fall, falling" (whence Latin pessum "to the bottom, to destruction"), verbal noun from an Indo-European base *ped- "step, fall," whence, with varying ablaut grades, Old English gefetan "to fall," Old Church Slavic padǫ, pasti, Sanskrit padyate "(s/he) falls, perishes"

Note: The Indo-European verbal base *ped- is generally taken to be a derivative of the noun *pōd-, ped- "foot"; see foot entry 1.

First Known Use

1815, in the meaning defined at sense 1

Time Traveler
The first known use of pessimism was in 1815

Browse Nearby Words

Cite this Entry

“Pessimism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pessimism. Accessed 5 Jul. 2026.

Kids Definition

pessimism

noun
pes·​si·​mism ˈpes-ə-ˌmiz-əm How to pronounce pessimism (audio)
1
: a tending to expect the worst possible outcome
2
: a belief that evil is more common than good in life
pessimist noun

Medical Definition

pessimism

noun
pes·​si·​mism
ˈpes-ə-ˌmiz-əm also ˈpez-
: an inclination to emphasize adverse aspects, conditions, and possibilities or to expect the worst possible outcome
pessimistic
ˌpes-ə-ˈmis-tik also ˌpez-
adjective
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