smart — having or showing quick intelligence or ready mental capability: a smart student.
wily — full of, marked by, or proceeding from wiles; crafty; cunning.
wise — having the power of discerning and judging properly as to what is true or right; possessing discernment, judgment, or discretion.
acute — An acute accent is a symbol that is placed over vowels in some languages in order to indicate how that vowel is pronounced or over one letter in a word to indicate where it is stressed. You refer to a letter with this accent as, for example, e acute. For example, there is an acute accent over the letter 'e' in the French word 'café'.
artful — If you describe someone as artful, you mean that they are clever and skilful at achieving what they want, especially by deceiving people.
brainy — Someone who is brainy is clever and good at learning.
calculating — If you describe someone as calculating, you disapprove of the fact that they deliberately plan to get what they want, often by hurting or harming other people.
cunning — Someone who is cunning has the ability to achieve things in a clever way, often by deceiving other people.
cutting — A cutting is a piece of writing which has been cut from a newspaper or magazine.
