space cadet
The term "space cadet" originated from science fiction but has evolved into a slang expression to describe someone who is often distracted or out of touch with reality.
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Definition
C2Science Fiction
(historical, technical)A trainee astronaut, especially in fictional works.
B2Everyday Life
(derogatory, informal)A person who is often forgetful, distracted, or not fully aware of their surroundings.
Example
- He's such a space cadet; he forgot about our meeting again.
- Don't be a space cadet—pay attention to the instructions!
B2Slang
(informal, derogatory)Someone who behaves as if they are under the influence of drugs, often appearing disoriented or spaced out.
Example
- After the party, he was acting like a total space cadet.
Similar
Terms that have similar or relatively close meanings to "space cadet":
space invaderspace flightrocket shipspaced outspace agedeep spacerocket scientistspace outblast offspace suitflying saucerouter space