sketchy

Etymology

sketch + -y

adj

1. Roughly or hastily laid out; intended for later refinement.
   The first draft included a sketchy design.
2. Not thorough or detailed.
   This is still in the design stage, so details are sketchy. August 11 2021, Paul Bigland, “Where HS2 will meet EWR”, in RAIL, number 937, page 39
3. Resembling a comedy sketch, of sketch quality.
4. (Canada, US, slang) Of questionable or doubtful quality.
   The sketchy repair job did not look like it would hold.
5. (Canada, US, slang, of a person) Suspected of taking part in illicit or dishonorable dealings.
   The downside of working with sketchy dudes on building sites and in greasy spoons was that they were sketchy, but they also knew shady things. 2019, Colson Whitehead, The Nickel Boys, Fleet, page 201
   Because he is so sketchy, I always think that he is up to something.
6. (Canada, US, slang, of a person) Disturbing or unnerving, often in such a way that others may suspect them of intending physical or sexual harm or harassment.
   Jack is so sketchy. I think he's stalking me.