1. having great strength, force, or energy
2. having great political, social, or economic influence or control
3. having a strong effect on people’s feelings or thoughts

Examples

• The powerful storm knocked down trees and power lines.
• She delivered a powerful speech that moved the audience to tears.
• The CEO is one of the most powerful people in the industry.
• This powerful engine can accelerate the car from 0 to 60 mph in seconds.
• The documentary presented powerful evidence of climate change.
• He has powerful connections in the government.
• The powerful waves crashed against the rocky shore.