The Collaborative International Dictionary of English v.0.48:

Noble-minded \No"ble-mind`ed\, a.
   Having a noble mind; of high moral or intellectual character;
   honorable; magnanimous. -- No"ble-mind`ed*ness, n.

   Syn: exalted, high-flown, high-minded, lofty, idealistic.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

noble-mindedness \noble-mindedness\ n.
   elevated ideals or conduct.

   Syn: high-mindedness, idealism.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

noble-mindedness
    n 1: elevated ideals or conduct; the quality of believing that
         ideals should be pursued [syn: high-mindedness,
         idealism, noble-mindedness]