i•de•al•izeaɪˈdi əˌlaɪz(v.)-ized, -iz•ing.

1. (v.t.)to consider or represent as having qualities of ideal perfection or excellence.

2. to represent in an ideal form or character.

3. (v.i.)to represent something in an ideal form.

Origin of idealize:

1780–90

i•de′al•iz`er(n.)