coun·ter 1 
(kountər)
(kountər)adj.
Contrary; opposing: moves and counter moves on the checkerboard.
n.
1. One that is an opposite.
2. Sports A boxing blow given while receiving or parrying another.
3. Sports A fencing parry in which one foil follows the other in a circular fashion.
4. A stiff piece of leather around the heel of a shoe or boot.
5. Nautical An overhanging portion of a ship's or boat's stern extending from the water line up to the transom.
6. Printing The depression between the raised lines of the face on a piece of type.
v. coun·tered, coun·ter·ing, coun·ters
v.tr.
1. To meet or return (a blow) by another blow.
2. To move or act in opposition to; oppose.
3. To offer in response: countered that she was too busy to be thorough.
v.intr.
To move, act, or respond so as to be in opposition.
adv.
1. In a contrary manner or direction.
2. To or toward an opposite or dissimilar course or outcome: a method running counter to traditional techniques.
[Middle English countre, from Old French contre, from Latin contrā; see COUNTER-.]