Understanding 'Magnificent' in Context

Emily was excited to go to the zoo. All her friends had told her about the magnificent lions, playful monkeys, and colorful birds they had seen there. When she arrived, she could hardly contain her excitement. The first exhibit she visited was the one with the lions. She was amazed by their strength and majesty as they basked in the sun. Emily thought they were simply magnificent.

What does the word magnificent mean in this context?