creepy, iffy, fairly unsafe, an
air of uncertainty, not kosher, and just generally
something or someone that you
don't want to be associated with (or really do want to be associated with, depending on who you are...)
1. That
guy staring at me is really sketchy.
2. This Waffle House is really sketchy.
3. I
don't
know if I like Steve's driving--it's kinda sketchy.