- The property of a person of having high ideals that are usually unrealizable or at odds with practical life.
- 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.
- (philosophy) An approach to philosophical enquiry, which asserts that direct and immediate knowledge can only be had of ideas or mental pictures.
- Synonyms: philosophical idealism
- Antonyms: materialism
- French: idéalisme
- German: Idealismus
- Italian: idealismo
- Portuguese: idealismo
- Russian: идеали́зм
- Spanish: idealismo