"musical composition that sounds extemporaneous," 1724, from Italian fantasia, from Latin phantasia (see fantasy).
中文解释
1、fant- + -asia(复合后缀：-asy, -ia).2、其实也就是看得见摸不着的东西，也就是很虚幻、很梦幻的东西。3、其词根的原始含义为：visible, appear. => only image or picture, picture to oneself, imagine.4、由此，该词的含义就很明确了：幻想，空想，狂想，白日梦；错觉，幻觉；怪念头，想入非非。
实用例句
1. I can't wait to listen to the fantasia!
我等不及想听狂想曲了。
来自辞典例句
2. On Another Present Mode of Music from " Fantasia " and " Fantasia 2000 "
由 《 幻想曲 》 及《幻想曲2000 》 谈另一种音乐呈现方式.
来自互联网
3. Utopia: Fantasia. Fantasia. This is Utopia. How do you read me?
理想国: 幻想曲. 幻想曲. 这里是理想国. 我的信号你收得到 吗 ?
来自互联网
4. Fantasia: I read you fair, with signal strength 3.
幻想曲: 你的信号我们收听得很清楚, 信号强度为三.
来自互联网
5. Michelangelo Antonioni's only American film, an atonal fantasia on the late 1960 s.