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antislavery

American

[an-tee-sley-vuh-ree, -sleyv-ree, an-tahy-] / ˌæn tiˈsleɪ və ri, -ˈsleɪv ri, ˌæn taɪ- /

noun

opposition to slavery.

adjective

of or relating to antislavery.

The antislavery movement in the United States gained momentum in the early 19th century.

antislavery British

/ ˌæntɪˈsleɪvərɪ /

adjective

opposed to slavery, esp slavery of Black people

"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

Etymology

Origin of antislavery

An Americanism dating back to 1810–20; anti- + slavery

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.

His daring would win the admiration of national antislavery advocates such as Ohio Gov. Salmon P. Chase and Horace Greeley, the editor of the New York Tribune, which regularly published Clay’s speeches and letters.

From The Wall Street Journal • Dec. 3, 2025

“There was this perception that antislavery Republicans hadn’t been sufficiently aggressive,” Waite said.

From Los Angeles Times • Sep. 13, 2025

Southern postmasters instituted a comprehensive censorship of mail to prevent antislavery literature from reaching the South.

From Salon • Jul. 26, 2025

So the conflict of the 1850s doesn’t happen without the emergence of a mass public that is genuinely antislavery and open to more aggressive methods that push back on slavery.

From Slate • Jul. 10, 2025

By 1847, he had started The North Star, an important antislavery newspaper.

From "American Spirits" by Barb Rosenstock

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023