These are opposites, as might be expected, but only with regard to the secondary meaning of "canny".
1. Careful and shrewd, especially where one's own interests are concerned. 2. Cautious in spending money; frugal. 3. Scots a. Steady, restrained, and gentle. b. Snug and quiet.
1. Peculiarly unsettling, as if of supernatural origin or nature; eerie. See synonyms at weird. 2. So keen and perceptive as to seem preternatural.