alien - definition and synonyms

 
adjective 

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/ˈeɪliən/
  1. 1
    [only before noun] from a different country, race, or culture

    Under the programme, alien workers can enter the US.

  2. 2
    [only before noun] relating to a planet other than Earth, or involving creatures from a planet other than Earth
     Synonyms and related words
  3. 3
    completely different from what you usually do, feel, or know

    They found the new management culture alien and puzzling.

    alien to:

    The concept is totally alien to her.