Prolofluvious

Adjective | pro·lo·flu·vi·ous

A tendency to be argumentive or aggressive in debate while remaining lucid and logical.

1570-80 < Latin prōlōfluviousmus

During the heated debate, Eli was exceptionally illogical in his arguments, letting his temper escalate. Ye, on the other hand, remained prolofluvious in his discussion of succulents, and eventually won the debate with his clear-headed thinking.