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English definition of “idealism”

idealism

noun [U] uk   /aɪˈdɪə.lɪ.zəm/ us  
the belief that your ideals can be achieved, often when this does not seem likely to others: She never lost her youthful idealism and campaigned for just causes all her life.
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Opinions, beliefs and points of view
specialized social sciences the belief in philosophy that objects in the world are ideas that only exist in the mind of God or people who see themPhilosophy
(Definition of idealism from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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