I. -pē-ən adjective
Usage: often capitalized
Date: 1551
1. : of, relating to, or having the characteristics of a utopia ; especially : having impossibly ideal conditions especially of social organization
2. : proposing or advocating impractically ideal social and political schemes
utopian idealists
3. : impossibly ideal : visionary
recognised the utopian nature of his hopes — C. S. Kilby
4. : believing in, advocating, or having the characteristics of utopian socialism
utopian doctrines
utopian novels
II. noun
Date: circa 1873
1. : one who believes in the perfectibility of human society
2. : one who proposes or advocates utopian schemes