Canny vs. Uncanny

I did not know that canny is not the positive of uncanny. I'm studying vocabulary for the GRE and have a long way to go.

un·can·ny–adjective

1. having or seeming to have a supernatural or inexplicable basis; beyond the ordinary or normal; extraordinary: uncanny accuracy; an uncanny knack of foreseeing trouble.


2. mysterious; arousing superstitious fear or dread; uncomfortably strange: Uncanny sounds filled the house.
   

can·ny–adjective

1. careful; cautious; prudent: a canny reply.


2. astute; shrewd; knowing; sagacious: a canny negotiator.


3. skilled; expert.


4. frugal; thrifty: a canny housewife.


5. Scot. Origin:
   
   1. safe to deal with, invest in, or work at (usually used with a negative).
   
   
   2. gentle; careful; steady.
   
   
   3. snug; cozy; comfortable.
   
   
   4. pleasing; attractive.

Definitions from Dictionary.com