Skilled in or marked by underhandedness, deviousness, or deception.(adjective)
Chiefly British Skillful; dexterous.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "crafty" in a sentence
"Characters often impress readers by solving problems in crafty and unexpected ways."
"Oh ... and buy that 6 flat on the block, duplex both sides and turn the first floor into offices and a studio for a certain crafty chick."
"It's too bad that Su used the word crafty to attack Hsieh."