say it: ahy-DEE-li-zuhm
idealism is a noun meaning "(philosophy) the philosophical theory that ideas are the only reality". It carries 3 recorded senses.
(philosophy) the philosophical theory that ideas are the only reality
philosophy
impracticality by virtue of thinking of things in their ideal form rather than as they really are
elevated ideals or conduct; the quality of believing that ideals should be pursued
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for idealism come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.