What does 1 Samuel 25:3 mean?

His name was Nabal, and his wife's name was Abigail. She was smart and beautiful, but Nabal was harsh and mean in everything he did. He was a descendant of Caleb. 1 Samuel 25:3 - Modern Text Bible

(Nabal is described as rude and unpleasant, while his wife Abigail is wise and attractive. Their personalities are total opposites.)