Quarrelsome (adjective)

1. Easily getting into arguments or disputes.
2. Tending to argue or dispute with others.
3. Having a combative or argumentative nature.

Origin:

Late 16th century: from obsolete quarrell "quarrel, dispute" + -some "inclined to".

Examples:

1. The quarrelsome neighbors constantly bickered and argued over the smallest things.
2. The quarrelsome employee was always looking for a fight and never willing to compromise.
3. The otherwise peaceful protest turned violent due to the presence of a few quarrelsome individuals.
4. The parents tried to resolve the quarrelsome behavior of their children by talking to them.
5. The quarrelsome attitude of the politician hindered any progress in the negotiations.