McCarthyism

noun

Mc·​Car·​thy·​ism mə-ˈkär-thē-ˌi-zəm How to pronounce McCarthyism (audio)
also -ˈkär-tē-
: a mid-20th century political attitude marked by opposition to elements held to be subversive and by the use of unsubstantiated and widely publicized personal attacks
broadly : defamation of character or reputation through such tactics
McCarthyist
mə-ˈkär-thē-ist How to pronounce McCarthyism (audio)
also -ˈkär-tē-
adjective
McCarthyite
mə-ˈkär-thē-ˌīt How to pronounce McCarthyism (audio)
also -ˈkär-tē-
noun or adjective

Examples of McCarthyism in a Sentence

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.
Spacey likened his predicament to the experiences of actors of yore, who were swept into the Hollywood blacklist as a result of McCarthyism. Natalie Oganesyan, Deadline, 21 Nov. 2025 Einstein’s philosophical battle against McCarthyism began with a letter to a Brooklyn high school teacher named William Frauenglass. Jodie Childers, The Conversation, 20 Nov. 2025 Advertisement Most notably, in 1958, congressional conservatives pushed to rein in the Warren Court for rulings that challenged and undercut the red-baiting that characterized the era of McCarthyism. Time, 14 Nov. 2025 That these connections were cemented during McCarthyism and the Red Scare — a time when the American way was perceived to be under threat — is no accident, Seaton said. Leah Asmelash, CNN Money, 19 Oct. 2025 See All Example Sentences for McCarthyism

Word History

Etymology

Joseph R. McCarthy

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of McCarthyism was in 1950

Browse Nearby Words

Cite this Entry

“McCarthyism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/McCarthyism. Accessed 26 Nov. 2025.

More from Merriam-Webster on McCarthyism

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!