American English

Definition of alien adjective from the Oxford Advanced American Dictionary

     

    alien

     adjective
    adjective
    NAmE//ˈeɪliən//
     
    , NAmE//ˈeɪlyən//
     
     
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  1. 1alien (to somebody/something) strange and frightening; different from what you are used to synonym hostile an alien environment In a world that had suddenly become alien and dangerous, he was her only security.
  2. 2(often disapproving) from another country or society; foreign an alien culture alien influences that threatened their way of life
  3. 3 (disapproving) not usual or acceptable alien to somebody/something The idea is alien to our religion. A referendum is alien to the party's concept of democracy. Cruelty was alien to him.
  4. 4connected with creatures from another world alien beings from outer space
See the Oxford Advanced Learner's Dictionary entry: alien

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