The opposite of "more unvigilant" would be "more vigilant." Vigilance implies being careful, watchful, and alert. It's the state of being attentive and aware of one's surroundings. On the other hand, being unvigilant means being careless, inattentive, and not paying attention to one's surroundings. It's a state of mind where one is not mindful and lacks focus, making them more prone to errors and risks. By developing a vigilant mindset, one becomes more cautious and can identify risks and opportunities more efficiently. Therefore, it is essential to practice vigilance, which can potentially save time, energy, and even lives.