Meaning of utopian

(adj) of or pertaining to or resembling a utopia; "a Utopian novel"

characterized by or aspiring to impracticable perfection; "the dim utopian future"; "utopian idealists"; "recognized the utopian nature of his hopes"

(noun) an idealistic (but usually impractical) social reformer; "a Utopian believes in the ultimate perfectibility of man"