nuclear option

noun

1
: the option of using nuclear weapons in war
… it is now unimaginable that we would use anything approaching the full measure of our military power (the nuclear option aside) in the wars we fight.Shelby Steele
2
: an extreme option regarded as a drastic step or last resort
The EU has most leverage over countries that are desperate to join. Once in the club, with full voting rights, countries can answer back, leaving their peers with only the nuclear option of trying to expel them.The Economist
specifically, US politics : a parliamentary procedure in the U.S. Senate by which the requirement of the affirmative votes of a supermajority of senators is changed to require only a simple majority to invoke cloture in order to stop a filibuster and allow a vote on a matter (such as a judicial nomination) to proceed
Since Republicans can't muster the 60 votes necessary to overcome this particular filibuster, they now want to use their authority over Senate procedures to abolish the maneuver itself, at least for judicial nominees. Exercising this "nuclear option," as it is known, would theoretically require the support of just a simple majority of senators, which Republican leaders say they are on the verge of solidifying. Jonathan Cohn

Examples of nuclear option 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.
The shift also introduces a non-nuclear option for long-range strike. Aamir Khollam, Interesting Engineering, 10 Apr. 2026 Of course, that is the most nuclear option there and probably the most involved option. Adam Harris, The Atlantic, 9 Apr. 2026 Reading the budget bill at length has long served as something of a nuclear option for House Republicans. Seth Klamann, Denver Post, 9 Apr. 2026 In 2017, Mitch McConnell used the same nuclear option to confirm Neil Gorsuch to the Supreme Court. Tony Vanderhoef, Sun Sentinel, 2 Apr. 2026 See All Example Sentences for nuclear option

Word History

First Known Use

1962, in the meaning defined at sense 1

Time Traveler
The first known use of nuclear option was in 1962

Browse Nearby Words

Cite this Entry

“Nuclear option.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nuclear%20option. Accessed 26 Apr. 2026.

Love words? Need even more definitions?

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

More from Merriam-Webster