contra-, contro-, counter, contre-

(Latin: against, opposed to, opposite, conflicting, different, clashing, unaccommodating)

counterphobia (s) (noun), counterphobias (pl)
A strong desire to find out what causes fear or anxiety instead of avoiding them: Dr. Smart pointed out to Jack that he was affected by counterphobia because he decided to take up mountain climbing in an attempt to overcome his horror of heights.
counterplot
counterplotted
counterplotting
counterpoint
counterpoise
A weight or force that balances another to which it is opposite; for instance, two children on a seesaw.
counterpose (verb), counterposes; counterposed; counterposing
1. To set in contrast, opposition, equilibrium, or balance: Dirk will be counterposing the arrangement of the furniture in the room with the windows.
2. To offer or to place in opposition, response, or contrast: Jane's argument was counterposing that of the rest of the panel.
3. To constitute a counterweight or counterbalance to someone or something: The presence of the school principal, Mr. Pyott, counterposed the input from community leaders.
counterproductive
1. Thwarting the achievement of an intended goal; tending to defeat one's purpose: "Getting into more debt while trying to save money is counterproductive."
2. Producing problems or difficulties instead of helping to achieve a goal: "A direct challenge to her authority is likely to be counterproductive."
3. Tending to hinder the achievement of a goal
counterproposal
counterpunch (s) (noun), counterpunches (pl)
1. An attack or a blow made by a boxer in response to an opponent's hitting him.
2. Etymology: meaning of "to hit with the fist" was first recorded 1520's, probably influenced by punish; the noun sense of "a blow with the fist" is recorded by 1570's; from Middle English punchen, "to thrust, prod; from Old French poinçonner, ponchonner, "to emboss with a punch; from poinçon, ponchon, "pointed tool"; from Latin punire, "to inflict a penalty on, to cause pain for some offense"; from earlier poenire, from poena, "penalty, punishment".
counterreformation
counterrevolution
1. A revolution whose aim is to reverse the changes introduced by a previous revolution.
2. A subversive activity with the objective of undoing the effects of a previous revolution and overthrowing the government or social system that it produced.
counterrevolutionary
1. Someone, especially a member of a military force, who seeks to overthrow a national government or social system established by a revolution.
2. An opponent of a revolution which is meant to change a political or social situation.
counterrevolutionist
1. A revolutionary whose aim is to reverse the changes introduced by an earlier revolution.
2. Someone who leads a movement to oppose revolutionary tendencies and developments.
counterscarp