viable /ˈvaiəbl]/ adj. 切实可行的,可实施的:The scheme is economically viable.这个计划从经济效益来看是可行的。The economy of the country is not viable.这个国家经济是难以维持的。None of the projects proved financially viable.这些项目没有一个证明在财政上是切实可行的。It is only their investment that makes the programme economically viable.因为他们的投资,这个项目在经济上才得以通过。