想そう像ぞう上じょう

noun which may take the genitive case particle 'no'

imaginary; in one's imagination

Used to describe something that exists only in the mind, not in reality. Often modifies nouns with の.

• それは想そう像ぞう上じょうの生いき物ものだ。

  That is an imaginary creature.

• 彼かれは想そう像ぞう上じょうの友とも達だちと話はなしていた。

  He was talking to an imaginary friend.