utopian

1. ADJ If you describe a plan or idea as utopian, you are criticizing it because it is unrealistic and shows a belief that things can be improved much more than is possible. (計劃、主意等) 空想的; 不切合實際的[表不滿]

He was pursuing a utopian dream of world prosperity. 他那時在追求一個不切實際的世界繁榮之夢。

2. ADJ Utopian is used to describe political or religious philosophies which claim that it is possible to build a new and perfect society in which everyone is happy. (政治或宗教思想) 空想的; 烏托邦式的[正式]

His was a utopian vision of nature in its purest form. 他對大自然的看法是一種最純粹的烏托邦式看法。