unmanned
Word family (noun) man manhood mankind (adjective) manly ≠ unmanly manned ≠ unmanned mannish (verb) man (adverb) manfully
From Longman Dictionary of Contemporary EnglishRelated topics: Spaceunmannedun‧manned /ˌʌnˈmænd◂/ adjective 1 TTSMACHINEan unmanned spacecraft does not have a person inside it2 if a place is unmanned, nobody is working there an unmanned railway crossingExamples from the Corpusunmanned• One platform in the Viking field has already been turned into an unmanned unit.