different between undeveloped vs sketchy

English

un- +? developed

undeveloped (comparative more undeveloped, superlative most undeveloped)

sketch +? -y

sketchy (comparative sketchier, superlative sketchiest)

Roughly or hastily laid out; intended for later refinement.
The first draft included a sketchy design.
Resembling a comedy sketch, of sketch quality. (Can we add an example for this sense?)
(Canada, US, slang) Of questionable or doubtful quality.
The sketchy repair job did not look like it would hold.
(Canada, US, slang, of a person) Suspected of taking part in illicit or dishonorable dealings.
Because he is so sketchy, I always think that he is up to something.
(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.

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