"idealism" in the noun sense
philosophy) the philosophical theory that ideas are the only reality
impracticality by virtue of thinking of things in their ideal form rather than as they really are
3. high-mindedness, idealism, noble-mindedness
elevated ideals or conduct the quality of believing that ideals should be pursued
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License