In law, a party who files an appeal in response to another party's appeal of the same case.
Counter- + appellant (one who appeals). Legal terminology that precisely names the role of someone responding to an appeal with their own appeal.
A counterappellant is essentially the defendant in a court appeal who says, 'Wait, I'm appealing too!'—it creates fascinating legal scenarios where both sides are simultaneously winners and losers.
Complete word intelligence in one call. Free tier — 50 lookups/day.