utopianism
noun/juːˈtəʊpiənɪzəm/
/juːˈtəʊpiənɪzəm/
(also Utopianism)
[uncountable]- the belief that everything can be perfect, often in a way that does not seem to be realistic or practical
- The utopianism of the '60s had given way to the street battles of the '70s.
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utopianism