Definition of "uncrewed" [uncrewed]

• Not having a crew; crewless: uncrewed missile launch. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Robotic probes and so-called uncrewed cosmic laboratories have done their work during the shuttle era, delivering a big scientific bang for the buck, compared to experiments done by human space voyagers."
• "Say you send first a few (3, 4?) of them uncrewed to the surface of the Moon."
• "When the crew leaves the Moon you have the potential of sending the uncrewed ascent vehicles for a rescue mission."