counter- /kaʊntə $ -tər/ BrE AmE prefix
[ Language: Old French ; Origin: contre- , from contre ; ⇨ ↑ counter 3 ]
1 . the opposite of something:
a counterproductive thing to do (=producing results opposite to what you wanted)
It is not hard to find a counter-example (=an example that shows the opposite) .
2 . done or given as a reaction to something, especially to oppose it:
claims and counterclaims
3 . matching something:
my counterpart in the American system (=someone who has the same job as I have)