argumentative

US /ˌɑːrɡ.jəˈmen.t̬ə.t̬ɪv/
UK /ˌɑːrɡ.jəˈmen.t̬ə.t̬ɪv/
"argumentative" picture
1.

given to arguing; disputatious

:
He's a very argumentative person, always ready for a debate.
Their discussions often turn into argumentative exchanges.