Idealism, substantiv
Sinonime: esențialism, idealitate, imaterialism, irealism, platonism, utopie, utopism.  

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Filozofie, substantiv feminin
Sinonime: agnosticism, antropocentrism, antropomorfism, antropopatism, asociaționism, ataraxie, atomism, averroism, bergsonism, cartezianism, cazualism, conceptualism, confucianism, constructivism, convenționalism, creaționism, daoism, deism, determinism, dialectică, doctrină, dualism, emanatism, emanaționism, empiriocriticism, empiriomonism, energetism, epicurism, epifenomenalism, epistemologie, estetică, etică, existențialism, fatalism, fenomenalism, fenomenism, fenomenologie, ficționalism, fideism, filozofem, finalism, fizicalism, formalism, gândire (profundă), gândirism, gimnozofie, gnoseologie, gnosticism, hegelianism, hilozoism, holism, idealism, ideologie, iluminism, indeterminism, infinitism, instrumentalism, intelectualism, intuiționism, iraționalism, înţelepciune, kantianism, kantism, luminism, machism, marxism-leninism, materialism, mecanicism, metafizică, moderație, monadism, monism, morală, nativism, naturalism, neoconfucianism, neohegelianism, neokantianism, neoplatonism, neopozitivism, neoraționalism, neorealism, neotomism, ocazionalism, operaționalism, panpsihism, panteism, peripatetism, personalism, pironism, pitagorism, platonism, pozitivism, pragmatism, predeterminism, preformism, priticism, raționalism, relativism, scientism, scolastică, semanticism, senzualism, sistem, solipsism, speculație, spinozism, spiritualism, stoicism, structuralism, subiectivism, știință, teism, teleologie, teologie, teorie, teozofie, teză, tomism, utilitarism, vitalism, voluntarism.  Esențialism, substantiv
Sinonime: idealism, platonism.  Imaterialism, substantiv
Sinonime: idealism, spiritualism, utopism.  Utopism, substantiv
Sinonime: angelism, idealism, irealism, utopie.  Irealism, substantiv
Sinonime: angelism, idealism, utopism.  Idealitate, substantiv
Sinonime: abstracționism, idealism, imaterialitate, spiritualitate.  Iraţionalism, substantiv
Sinonime: antiintelectualism, deism, idealism, misticism, spiritualism.