/un'ree al"i tee/ , n. , pl. unrealities .
1. lack of reality; quality of being unreal: the unreality of dreams.
2. something that is unreal, invalid, imaginary, or illusory: She appeared to be living in a world of unrealities.
3. incompetence or impracticality, esp. in everyday matters.
[ 1745-55; UN- 1 + REALITY ]