The word "most weak-kneed" refers to a person who lacks courage or conviction. Antonyms for this term are those that describe a person who is strong-willed, confident, and unafraid. Some examples include bold, brave, fearless, determined, resolute, and steadfast. Individuals who display these traits are often considered leaders, who are not easily influenced by others or swayed by opinions. They stand by their beliefs and are willing to take risks to achieve their goals. Such attributes are highly valued in any profession, and it is important to nurture them to become a capable and dependable person.