dis·pu·tant /dɪˈspjutṇt, ˈdɪspjətənt/
dis·pu·tant a. Disputing; engaged in controversy.
dis·pu·tant, n. One who disputes; one who argues in opposition to another; one appointed to dispute; a controvertist; a reasoner in opposition.
A singularly eager, acute, and pertinacious disputant. --Macaulay.
n : a person who disputes; who is good at or enjoys controversy
[syn: controversialist, eristic]