The phrase "more strong-minded" implies that someone possesses a determined and resolute character. However, there are antonyms that describe the opposite traits. Some words that express weakness of mind or indecisiveness include fainthearted, timid, unsure, hesitant, faltering, and vacillating. Other antonyms for "more strong-minded" could be submissive, meek, compliant, or submissive. These words describe someone who lacks the ability to make bold or confident decisions, and instead submits to the will of others. While being strong-minded can sometimes lead to stubbornness, it is generally seen as a positive quality, and the antonyms reflect negative traits.