alien meaning and definition

ALIEN noun

Definition of alien (noun)

1. a person who comes from a foreign country; someone who does not owe allegiance to your country
   • synonyms: foreigner, noncitizen, outlander
   • antonym: citizen
2. anyone who does not belong in the environment in which they are found
   • synonyms: stranger, unknown
   • antonym: acquaintance
3. a form of life assumed to exist outside the Earth or its atmosphere
   • synonyms: extraterrestrial, extraterrestrial being

ALIEN verb

Definition of alien (verb)

1. transfer property or ownership
   • "The will aliened the property to the heirs"
   • synonyms: alienate
2. arouse hostility or indifference in where there had formerly been love, affection, or friendliness
   • "She alienated her friends when she became fanatically religious"
   • synonyms: alienate, disaffect, estrange

ALIEN adjective

Definition of alien (adjective)

1. not contained in or deriving from the essential nature of something
   • "an economic theory alien to the spirit of capitalism"; "the mysticism so foreign to the French mind and temper"; "jealousy is foreign to her nature"
   • synonyms: foreign
2. being or from or characteristic of another place or part of the world
   • "alien customs"; "exotic plants in a greenhouse"; "exotic cuisine"
   • synonyms: exotic