imaginary
adjective /ɪˈmædʒɪnəri/
  /ɪˈmædʒɪneri/
- existing only in your mind or imagination
- The equator is an imaginary line around the middle of the earth.
 - I had an imaginary friend when I was a child.
 - As children they invented the imaginary world of Gondal.
 - We must listen to their problems, real or imaginary.
 
Extra Examples- a largely imaginary threat
 - The story is wholly imaginary.
 - Children experience a lot of imaginary fears at this age.
 
Oxford Collocations Dictionaryverbs- be
 
- completely
 - entirely
 - purely
 - …
 
Word Originlate Middle English: from Latin imaginarius, from imago, imagin- ‘image’.