What does unpiloted mean?
Unpiloted means Lacking a pilot.
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Pronunciation varies by accent · adjective
Lacking a pilot.
The ship was unpiloted and adrift.
The trouble has been mainly due to the preceding 6.40 p.m. Sheffield express, which since being demoted from an "XL Limit" to a "Special Limit" schedule had presented unpiloted Class "6" 4-6-0s with loads at times up to 12 bogies. [In railway parlance "unpiloted" means the train had no pilot engine double-heading it.]
Use unpiloted when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Unpiloted means Lacking a pilot.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
The ship was unpiloted and adrift.
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