left·​ism | \ˈlef-ˌti-zəm \

Definition of leftism 

1 : the principles and views of the left also : the movement embodying these principles

2 : advocacy of or adherence to the doctrines of the left

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Other Words from leftism

leftist \ ˈlef-​tist \ noun or adjective

Synonyms & Antonyms for leftism


left, liberalism


conservatism, right

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Examples of leftism in a Sentence

the candidate's opponents are working overtime to paint him as a champion of extreme leftism

Recent Examples on the Web

Max had been a brilliant and leading organizer of the Yiddish Bund, a humane form of non-Communist leftism that attracted tens of thousands of adherents in prerevolutionary Russia, Lithuania and Poland. Dagmar Herzog, New York Times, "Surviving Europe’s Horrendous 20th Century," 6 Apr. 2018 Arcata is a Northern California hot spot of trendy leftism that in 1989 prohibited the manufacture or storage of nuclear weapons within city limits. Karl Rove, WSJ, "The Pitchforks Are Out for McKinley," 4 Apr. 2018 The Left has always opposed nationalism because leftism is rooted in class solidarity, not national solidarity. Dennis Prager, National Review, "Leftism Is Not Liberalism," 12 Sep. 2017 Given the president’s leftism, his most ideologically consistent option would be to stop paying, as Argentina did in 2001. The Economist, "How long can Venezuela avoid default?," 2 Nov. 2017 But Isaac’s deeper point is that tribal leftism has not affected Democratic politics the way tribal rightism has infected the Republicans. Andrew Sullivan, Daily Intelligencer, "It’s Win-Win When Trump and the Democrats Work Together," 22 Sep. 2017 Thus, claiming free speech as an absolute value, and their leftism as a badge of pride, Charlie Hebdo can mock the victims of a natural disaster. Panjak Mishra, Alaska Dispatch News, "From Myanmar to D.C., cruelty overtakes compassion," 22 Sep. 2017 His ordination as a Catholic priest in 1989 followed his conversion from the leftism that marked his early career as a Pentecostal minister and political activist. Mene Ukueberuwa, WSJ, "The Acton Institute’s Moral Capital," 17 Aug. 2017 And their anti-leftism appealed, since Joyce imagined a global Jewish Bolshevik conspiracy. John Broich, Slate Magazine, "William Joyce’s aristocratic voice carried Nazi propaganda into millions of British homes.," 27 Mar. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'leftism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of leftism

1880, in the meaning defined at sense 2

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The first known use of leftism was in 1880

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playful or foolish behavior

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