shrewd

Having or showing a clever awareness or resourcefulness, especially in practical matters.

Disposed to or marked by artful and cunning practices; tricky.

Sharp; penetrating.

Evil; accursed; malignant; wicked.

Having a curst temper; scolding; vixenish; shrewish.

Annoying; mischievous; vexatious; troublesome; malicious.

Sharp: keen; biting; harsh.

Sly; canning; artful; spiteful.

Astute; sagacious; discriminating; discerning; smart; sharp: as, a shrewd man of the world.

Indicating shrewdness; due to shrewdness; involving or displaying sagacity or astuteness: as, a shrewd remark; a shrewd face.