区别辨析economic、economical、financial与economy

economic、economical、financial与economy这些形容词均含有“经济的”之意。

economic : 指与political“政治的”相对而言的“经济的”。

The country has been in a very poor economic state ever since the decline of its two major industries.
自从这个国家的两大支柱产业衰退后，其经济一直萎靡不振。
The government's economic policies have led us into the worst recession in years.
政府的经济政策使我们遭遇了多年来最为严重的经济衰退。

economical : 指与“节约”同义的“经济”，含“节约、不浪费”之意。

There's increasing demand for cars that are more economical on fuel.
对低油耗汽车的需求与日俱增。
What's the most economical way of heating this building?
给这座楼供暖，怎样做才是最经济的方法？

financial : 指“财务的、金钱的、财政的、财力的”。

economy : 在名词前作形容词用，相当于economical，表“节约的”或“经济实惠的”。