utopian

1. （计划、想法）空想的，不切实际的
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.

e.g. He was pursuing a utopian dream of world prosperity...
他怀揣着一个实现世界繁荣的乌托邦之梦。
e.g. A complete absence of national border controls is as utopian today as the vision of world government.
在今天，完全取消国家边界控制的观点与建立一个世界政府的想法一样不切实际。

2. （政治或宗教思想）空想的，乌托邦式的
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.

e.g. His was a utopian vision of nature in its purest form.
他对大自然怀有一种极为纯粹的乌托邦式看法。

1. 理想化的：就是说,我们心目中理想化的(Utopian)世界,是被幻想出来的. 然而我们就偏偏生活在这种理想化(idealization)的世界里. 现代部分年轻人,根本不想理会政府政策、对社会课题不加以关心、对政治冷感.....就是说他们追求的是功利与利己、物质享受的生活.

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2. 乌托邦的,理想化的：utilize 利用 | Utopian 乌托邦的,理想化的 | valve 阀

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3. 空想家：Ethiopian埃塞俄比亚人 | Utopian空想家 | Mississippian 密西西比人