sketchy

他给了我一个粗略的时间表，细节还不太明确。

He gave me a ___sketchy schedule without clear details.

她只提供了一个粗略的计划，缺少具体细节。

She only gave us a ___sketchy plan without any specific details.

他给的路线图太粗略了，我们差点迷路。

The directions he provided were too ___sketchy, and we almost got lost.