rebuttal (n.)

• answer
• argument
• challenge
• comeback
• confutation
• contention
• contradiction
• contravention
• counteraction
• counterblast
• countercharge
• counterclaim
• crosscurrent
• crossing
• defense
• demolition
• demurrer
• denial
• exception
• negation
• objection
• opposition
• overthrow
• plea
• pleading
• pleadings
• rebutter
• refusal
• refutal
• refutation
• rejection
• rejoinder
• replication
• reply
• resistance
• response
• retaliation
• retort
• riposte
• squelch
• subversion
• surrebuttal
• surrebutter
• surrejoinder
• traversal
• undercurrent
• upset