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antithesis

American  
[an-tith-uh-sis] / ænˈtɪθ ə sɪs /

noun

antitheses plural
  1. opposition; contrast.

    the antithesis of right and wrong.

  2. the direct opposite (usually followed by of orto ).

    Her behavior was the very antithesis of cowardly.

    Synonyms:
    reverse, opposite
  3. Rhetoric.

    1. the placing of a sentence or one of its parts against another to which it is opposed to form a balanced contrast of ideas, as in “Give me liberty or give me death.”

    2. the second sentence or part thus set in opposition, as “or give me death.”

  4. Philosophy. Hegelian dialectic


antithesis British  
/ ænˈtɪθɪsɪs /

noun

  1. the exact opposite

  2. contrast or opposition

  3. rhetoric the juxtaposition of contrasting ideas, phrases, or words so as to produce an effect of balance, such as my words fly up, my thoughts remain below

  4. philosophy the second stage in the Hegelian dialectic contradicting the thesis before resolution by the synthesis

"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

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Derived Forms

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Nouns

Etymology

Origin of antithesis

First recorded in 1520–30; from Latin, from Greek: “opposition,” from anti(ti)thé(nai) “to oppose” + -sis -sis; equivalent to anti- + thesis

Explanation

An antithesis is the complete opposite of something. Though the counterculture was strong in America in 1968, voters elected Richard Nixon, the antithesis of a hippie. The noun antithesis comes from a Greek root meaning "opposition" and "set against." It's often used today when describing two ideas or terms that are placed in strong contrast to each other. We might come across antithesis in school if we learn about the "Hegelian dialectic." There, the thesis, or main idea put forward in an argument, is countered with its opposite idea — the antithesis — and the two are finally reconciled in a third proposition, the synthesis. An antithesis wouldn't exist without a thesis because it works as a comparison.

Keep Reading on Vocabulary.com

Vocabulary lists containing antithesis

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.

See Examples For:

While Chinese robots have produced some impressive displays, external, they have taken place in highly controlled or structured environments – the antithesis of real-world warfare.

From BBC Jun. 8, 2026

LGBTQ+ people are not a problem for Christians to manage, and their lives are not the antithesis of American values.

From Salon Jun. 5, 2026

"It's the antithesis of a hospital ward," says garden designer Sarah Price.

From BBC May 29, 2026

With its glorious views and picturesque harbor, Whitby is the antithesis of gothic horror.

From Los Angeles Times May 14, 2026

In disposition, she was Pollard’s antithesis, governing her life with rigid reserve as he scattered his passions.

From "Seabiscuit: An American Legend" by Laura Hillenbrand

To illuminate his dark subject matter, Fiedler adopts a punchy, aggressive prose replete with antitheses, exclamation marks, capitalized terminology and bold generalizations.

From The Wall Street Journal May 22, 2026

And established characters and stakes are the antitheses to the lazy multiverse narrative.

From New York Times Jan. 18, 2023

In the New York that shaped Trump’s aesthetics, that description would have suited affordable housing projects like Waterside Plaza, River Park Towers, Chatham Towers, and Tracey Towers—the antitheses of Trump’s new brand.

From Slate Jul. 31, 2018

Lancaster had been seen as the antitheses of predecessor Martin Johnson: one a big name but never before a coach, the other an outsider who had coached his way up from the grassroots.

From BBC Nov. 11, 2015

Sentence is bound to sentence with repeated words—“conceive,” “dedicate,” “consecrate”— and with the antitheses of “we” and “they,” “living” and “dead.”

From "Words Like Loaded Pistols" by Sam Leith

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