unmanned

adjective
un·​manned | \ ˌən-ˈmand How to pronounce unmanned (audio) \

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

The unmanned aircraft stationed on Abaco was owned by Fli Drone, which launched its delivery service just before the hurricane hit. Wired, "The First Hurricane Relief Drone Was Ready to Fly—Then Dorian Hit," 17 Sep. 2019 Such energy-saving kinematics could help improve the efficiency of miniature unmanned air vehicles (UAVs) used for surveillance. Shweta Narayan, Smithsonian, "How Engineers of New Energy Technology Are Taking Cues From Nature," 31 Aug. 2019 Hahn described these countermine crafts, the most widely used version being the MK18, as a gateway to broader naval use of unmanned underwater systems. The Atlantic, "Coming Soon to a Battlefield: Robots That Can Kill," 3 Sep. 2019 This is always a possibility with expendable, unmanned aircraft, but the LJ-1 is the first to advertise the capability. Kyle Mizokami, Popular Mechanics, "China's Loyal Wingman Drone Flies Alongside Manned Fighters," 31 Aug. 2019 Welcome to the age of direct-energy weapons versus unmanned aerial systems. Brian Barrett, WIRED, "The Marines’ New Drone-Killer Aces Its First Real World Test," 22 July 2019 Since then, dozens of expeditions by explorers, artifact salvagers, tourists and unmanned vehicles have visited the ship. Jason Daley, Smithsonian, "The Titanic Is Being Reclaimed by the Sea," 22 Aug. 2019 The capsule was launched by a new Soyuz 2.1a rocket, which has only been used to launch unmanned vehicles. Fox News, "Russian life-sized robot launched on mission to the International Space Station," 22 Aug. 2019 The unmanned, 30-foot-long vehicle can deliver up to 12,125 pounds of supplies and can remain attached to the ISS and become an extension of the workable space. Richard Tribou, orlandosentinel.com, "Dream Chaser spacecraft to launch to ISS on ULA’s Vulcan rockets," 14 Aug. 2019

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 2019

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The first known use of unmanned was in 1544

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More Definitions for unmanned

unmanned

adjective

English Language Learners Definition of unmanned

: not carrying or done by a person

More from Merriam-Webster on unmanned

Rhyming Dictionary: Words that rhyme with unmanned

Thesaurus: All synonyms and antonyms for unmanned

Spanish Central: Translation of unmanned

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