Possessing dexterity; skilled; skillful.
Skillful at deceiving others.
Sneaky; surreptitious.
Relating to, or characterized by, craft or skill; dexterous.
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.