ข้อกำหนด — อังกฤษ
- Having or capable of exerting power.
- Effective or potent: a powerful drug.
- Chiefly Upper Southern U.S. Great: "[Everybody had] a powerful lot to say about faith and good works and free grace and preforeordestination, and I don't know what all” ( Mark Twain).
- Chiefly Upper Southern U.S. Very: It was powerful humid.