IPA: /ɪˈrɪstɪkəl/
KK: /ɪˈrɪstɪkəl/
Relating to or characterized by disputation or argumentation, often in a way that is intended to win rather than to seek truth.
The eristical nature of the debate made it difficult to reach a consensus.
Eristical is formed from "eristikos" (Greek, meaning argumentative or fond of disputation) and the suffix "-al" (meaning pertaining to). The word describes something that is related to or characterized by argument or debate.
Think of someone who is 'fond of argument' ('eristikos') — that's why eristical means pertaining to argument.