Pugnacious (adjective)

Having or showing a tendency to be ready to fight or argue with others; combative or quarrelsome.

Origin:

Mid 16th century: from latin pugnax, pugnac- 'fond of fighting', from pugnare 'to fight'.

Examples:

1. He had a pugnacious personality and was always looking for a fight.
2. The boxer was known for his pugnacious style, never backing down from a challenge.
3. The pugnacious politician was always stirring up trouble, never satisfied with the status quo.
4. The pugnacious attitude of the players led to several on-court altercations during the game.
5. She had a pugnacious streak, never backing down from a challenge and always standing up for what she believed in.