The word "most impuissant" means extremely weak or powerless. Its antonyms, or opposites, include strong, powerful, potent, effective, and authoritative. These words convey a sense of vigor, ability, and influence. "Strong" suggests physical or emotional strength, while "powerful" implies great force or energy. "Potent" connotes the ability to achieve something significant, while "effective" implies the capacity to produce a desired result. "Authoritative" suggests control or leadership. Antonyms for "most impuissant" describe qualities that are essential for success, both in individuals and institutions, such as government or business. By using these words, we can convey a message of confidence and assurance, which inspires and motivates others.