Alien theory Synonyms

Definitions for Alien


  • (adjective) being, relating to, or characteristic of a country other than one's own
  • (adjective) not being a vital part of or belonging to something
  • (verb) to cause to change from friendly or loving to unfriendly or uncaring

Definitions for Theory


  • (noun) an idea that is the starting point for making a case or conducting an investigation
  • (noun) a belief that can guide behavior
  • (noun) a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena