un·manned | \ ˌən-ˈmand \

Definition of unmanned 

1 : not manned an unmanned spaceflight

2 of a hawk : not trained

Examples of unmanned in a Sentence

Recent Examples on the Web

China has made strides in advanced missile systems as well as unmanned aerial vehicles. Alexander Benard, WSJ, "America Needs to Sell More Weapons," 1 July 2018 The spacecraft, which will be unmanned, will be loaded with 10 scientific instruments, including one that will provide imaging of the heliosphere and track the flow of interstellar neutral atoms, Schwadron said. Elise Takahama, BostonGlobe.com, "NASA selects UNH researchers for mission to study safer space travel," 8 June 2018 Compare that to the mountains of seminal publications (not to mention a Nobel Prize or two) coming from unmanned spacecraft, and the difference is stark. Konstantin Kakaes, Vox, "NASA’s leader wants to privatize the International Space Station. It’s a remarkably terrible idea.," 8 June 2018 Ballard had developed Argo, an unmanned deep-sea camera system that gave oceanographers unprecedented access to the ocean floor. Erin Blakemore, Washington Post, "Secret Titanic search mission revealed in National Geographic exhibition," 27 May 2018 Nonetheless, Conrad and Bean pushed on with a second walk on the lunar surface, taking photographs of their surroundings and retrieving parts from the Surveyor III, an unmanned spacecraft that had reached the moon in 1967. The Washington Post, OregonLive.com, "Alan Bean, fourth man to walk on the moon, dies at 86," 26 May 2018 The unmanned aircraft system, mostly used in search-and-rescue missions, was unveiled by McDonnell last year without public knowledge or input. Maya Lau, latimes.com, "Sheriff McDonnell inherited a department rotted by corruption. His reform effort is a work in progress," 24 May 2018 A year later, an unmanned Chinese spacecraft orbited the moon to test equipment and techniques for a future lunar mission. Mike Ives, New York Times, "As America Looks Inward, China Looks to Outer Space," 23 May 2018 The effort aims to achieve what Army developers describe as greater standoff, meaning an unmanned system can enter hostile combat while helicopter crews remain at a safer distance. Kris Osborn, Fox News, "US Army starts work on future attack-recon helicopter," 16 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unmanned.' 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 unmanned

1544, in the meaning defined at sense 1

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Last Updated

23 Sep 2018

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The first known use of unmanned was in 1544

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English Language Learners Definition of unmanned

: not carrying or done by a person

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Spanish Central: Translation of unmanned

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