Having quick, light and nimble fingers.
Having nimble fingers, especially for stealing or picking pockets (pickpocketing), given to thievery or shoplifting.
Cunning, skillful.
Tenuous; rarefied; of low density or thin consistency.
Barely noticeable, not obvious, indistinct.
Cleverly contrived.
Insidious.
Hard to grasp; not obvious or easily understood.