coun·ter·ar·gu·ment 
(kountər-är′gyə-mənt)
(kountər-är′gyə-mənt)n.
1. An argument in opposition to another.
2. Something that undermines an argument or deters someone from action: The large number of police provided a powerful counterargument to riotous behavior.
- concretization
- concretize
- concubinage
- concubine
- concupiscence
- concupiscent
- concupiscible
- concur
- concurrence
- concurrency
- concurrent
- concurrently
- concurrent resolution
- concuss
- concussion
- concussive
- concussively
- condemn
- condemnable
- condemnation
- condemnatory
- condemner
- condemnor
- condensability
- condensable