ˌīdēˈaləd.ə, -diˈa-, -ətē, -i noun
( -es )
Etymology: ideal (I) + -ity
1.
a. : the quality or state of being ideal
b. : existence only in idea
2. : something imaginary or idealized : an unreal or unrealistic thing or concept
3. : the poetic or creative faculty — used originally in phrenology