8 letters · 11 points in Scrabble
noun (philosophy) the philosophical theory that ideas are the only reality
noun impracticality by virtue of thinking of things in their ideal form rather than as they really are
noun elevated ideals or conduct; the quality of believing that ideals should be pursued
originFirst attested 1796, from ideal + -ism.
Etymology from Wiktionary, CC BY-SA 3.0