idealism

n. [ Cf. F. idéalisme. ] 1. The quality or state of being ideal. [ 1913 Webster ]

2. Conception of the ideal; imagery. [ 1913 Webster ]

3. (Philos.) The system or theory that denies the existence of material bodies, and teaches that we have no rational grounds to believe in the reality of anything but ideas and their relations. [ 1913 Webster ]

4. The practice or habit of giving or attributing ideal form or character to things; treatment of things in art or literature according to ideal standards or patterns; -- opposed to realism. [ Webster 1913 Suppl. ]

5. a belief in the feasibility of the implementation of ideal principles and noble goals, and the practice or habit of pursuing such goals; -- opposed to realism and cynicism. [ PJC ]