crafty

Concise Oxford English Dictionary © 2008 Oxford University Press:
crafty/ˈkrɑːfti/

▶adjective (craftier, craftiest)

• 1 cunning or deceitful.

• 2 informal relating to the making of objects by hand.

– derivatives
craftily adverb,
craftiness noun.

– origin OE cræftig ‘strong, powerful’ (see craft, -y1).