tantamount

adjective

tan·​ta·​mount ˈtan-tə-ˌmau̇nt How to pronounce tantamount (audio)
: equivalent in value, significance, or effect
a relationship tantamount to marriage

Did you know?

Although tantamount (from the Anglo-French phrase tant amunter, meaning “to amount to as much”) was used three different ways in the early 17th century—as a noun, verb, and adjective—the adjective form has since proven paramount to English users: it’s still in use while the noun and verb are obsolete. This is not to say that the adjective hasn’t experienced change over the years. While it was once acceptable to use tantamount in a variety of different sentence structures, nowadays it is almost always followed by the word to. And to use it before a noun, as in “the two old friends exchanged tantamount greetings,” would now be considered, er, tantamount to riding a penny-farthing or boneshaker onto the expressway.

Examples of tantamount in a Sentence

His statement was tantamount to an admission of guilt. They see any criticism of the President as tantamount to treason.
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.
These forces are so large that ignoring them is tantamount to planning for failure. Dev Patnaik, Forbes, 12 Jan. 2025 The United States has sent Israel shipments of weapons worth billions of dollars since the start of the armed conflict, despite international condemnation of its assault on Gaza and accusations from human rights groups that its actions there are tantamount to genocide. Karoun Demirjian, New York Times, 9 Jan. 2025 Meta's fact-checking partners are rebutting Mark Zuckerberg's suggestion on Tuesday that their work is tantamount to censorship. Kate Gibson, CBS News, 8 Jan. 2025 Image With Russian forces holding the initiative on the battlefield, President Vladimir V. Putin has rejected any settlement short of a deal that would be tantamount to Ukrainian surrender. Marc Santora, New York Times, 31 Dec. 2024 See all Example Sentences for tantamount 

Word History

Etymology

obsolete tantamount, noun, equivalent, from Anglo-French tant amunter to amount to as much

First Known Use

1641, in the meaning defined above

Time Traveler
The first known use of tantamount was in 1641

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Dictionary Entries Near tantamount

Cite this Entry

“Tantamount.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tantamount. Accessed 20 Jan. 2025.

Kids Definition

tantamount

adjective
tan·​ta·​mount ˈtant-ə-ˌmau̇nt How to pronounce tantamount (audio)
: equal in value, meaning, or effect
Last Updated: - Updated example sentences
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