sketchy
adjective uk/ˈsketʃ.i/ us/ˈsketʃ.i/
(NOT DETAILED)
简略的，粗略的
containing few details
So far we only have sketchy information about what caused the explosion. 迄今为止，我们仅仅掌握了关于爆炸起因的大概信息。
(NOT SAFE)
US informal不完全安全;不完全诚实
not completely safe or not completely honest
a sketchy guy 一个不怎么诚实的人
They lived in a sketchy neighborhood. 他们住在一个不太安全的街区。