A person who is combative is aggressive and eager to fight or argue.

What does a combative mean?

English Language Learners Definition of combative

: having or showing a willingness to fight or argue.

Who is a combative person?

Combative means inclined to fight or prone to being argumentative. It's especially used to describe someone who has become defensive and is disputing things in a belligerent way. It's not commonly applied to someone who's prone to starting physical fights.