Definition of Alien

different from the norm or what is considered to be acceptable

Examples of Alien in a sentence

Everyone in the room disbelieved the man’s story about being abducted by an alien from another planet.  

Because researchers had never seen such a unique type of DNA, they believed the creature had to be alien in origin.  

Jason did not follow proper dining etiquette so everyone at the table stared at him like he was an alien.  

In the room filled with tuxedo-dressed billionaires, the homeless man stood out like an alien from another world.  

The movie was about an alien who needed help to return to his home planet.  

Other words in the Imaginary People and Animals category:

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