[uto.pi.an] adj, often cap (1551) 1: of, relating to, or having the characteristics of a utopia; esp: having impossibly ideal conditions esp. of social organization
2: proposing or advocating impractically ideal social and political schemes "~ idealists"
3: impossibly ideal: visionary "recognised the ~ nature of his hopes --C. S. Kilby"
4: believing in, advocating, or having the characteristics of utopian socialism "~ doctrines" "~ novels"
[2]utopian n (ca. 1873) 1: one that believes in the perfectibility of human society
2: one that proposes or advocates utopian schemes