—adj. 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. a. safe to deal with, invest in, or work at (usually used with a negative).
b. gentle; careful; steady.
c. snug; cozy; comfortable.
d. pleasing; attractive.
e. Archaic.having supernatural or occult powers.
—adv.Also,can'ni•ly. 1. in a canny manner.
2. Scot.carefully; cautiously.