If someone is short-sighted about something, or if their ideas are short-sighted, they do not make proper or careful judgments about the future.
Environmentalists fear that this is a short-sighted approach to the problem of global warming…
环境保护主义者担心这并非解决全球变暖问题的长久之计。
I think we’re being very short-sighted.
我认为我们这样做目光很短浅。