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unmanned + noun
unmanned 作定语放在名词前，表示“无人驾驶的/无人操纵的”，常见搭配如 unmanned spacecraft、unmanned aerial vehicle。
The military is testing an unmanned vehicle.
军方正在测试一辆无人驾驶车辆。
无人的；无人操纵的；无人驾驶的
先理解核心含义，再看它在真实句子里的用法。
无人的；无人操纵的；无人驾驶的
not having a person on board or in control; operated without a crew
The military is testing an unmanned vehicle.
军方正在测试一辆无人驾驶车辆。
无人操作的,无乘员的。
Not operated by a person or a crew.
指猛禽:不习惯人类在场的。
Of a bird of prey: not accustomed to the presence of human beings.
没有船员的
lacking a crew
The convenience store is unmanned at night, so you pay at the self-checkout machine.
这家便利店夜间无人值守，所以你在自助结账机付款。
AI contextual example
Unmanned taxis are now being tested in some cities.
无人驾驶出租车目前正在一些城市进行测试。
AI contextual example
They used an unmanned boat to map the bottom of the lake.
他们用一艘无人船测绘湖底。
AI contextual example
an unmanned satellite to Mars
一枚前往火星的无人卫星。
WordNet
unmanned 作定语放在名词前，表示“无人驾驶的/无人操纵的”，常见搭配如 unmanned spacecraft、unmanned aerial vehicle。
The military is testing an unmanned vehicle.
军方正在测试一辆无人驾驶车辆。
be + unmanned 描述无人操作或无人值守的状态。
This station is unmanned at night.
这个车站夜间无人值守。
remain + unmanned 强调“仍然/一直”处于无人操作的状态。
The lighthouse remained unmanned for years.
这座灯塔多年来一直无人值守。
Not this
Don't leave your baggage unmanned in the lobby.
Use this
Don't leave your baggage unattended in the lobby.
unmanned 用于飞机、车辆、机器或设施没有操作人员；行李不是被人操纵的，而是没人照看，所以应用 unattended 表示‘无人看管’。
Not this
I walked along an unmanned street late at night.
Use this
I walked along a deserted street late at night.
unmanned 用于原本需要人员操作或配置人员的设施/机器；街道不是被‘配备人员操作’的对象，表示街上没有人、冷清时应用 deserted 或 empty。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
无人机
The military uses unmanned aerial vehicles for surveillance.
军方使用无人机进行侦察。
无人宇宙飞船
An unmanned spacecraft landed on Mars.
一艘无人宇宙飞船降落在火星上。
无人任务
The agency launched an unmanned mission to study the asteroid.
该机构发射了一项无人任务来研究这颗小行星。
无人驾驶车辆
Unmanned vehicles are being tested for delivery services.
无人驾驶车辆正在测试用于送货服务。
无人值守站
The weather data comes from an unmanned station in the desert.
这些天气数据来自沙漠中的一个无人值守站。
Use unmanned naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：无人机(unmanned)里没有一个'man'（人）在驾驶，所以就是'无人的、无人操纵的'。
语域：neutral 常见场景：航空航天、军事、科技报道 ‘unmanned’ 通常用于较正式或技术性的场合，表示‘无人的、无人操纵的’；日常口语中表达‘无人驾驶的’时更常说 driverless 或 autonomous。
Unmanned /ənˈmænd/ ends with the sound /ænd/. It rhymes with manned, canned, planned, scanned, band, and hand. The words manned, canned, planned, and scanned also share the -anned spelling ending. Band and hand are spelled with -and instead. Watch out for lookalikes: maned /meɪnd/ (and unmaned /ʌnˈmeɪnd/) have one n and a long a, so they do not rhyme.
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.