Soporific is the word that indicates sleep-promoting or causing drowsiness. The opposite of most soporose would, therefore, mean being highly alert, animated, and energetic. Some antonyms for soporific can be active, energetic, wide-awake, and stimulated. An alert mind is essential for overall excellent cognitive function and productivity, which is why many people resort to stimulants like coffee and energy drinks to keep themselves awake and active. Being highly alert can be highly beneficial, allowing individuals to take on complex tasks or achieve their goals much quicker than those who are in a drowsy state. Therefore, being the antithesis of soporific is highly favorable to many people who need to stay active and attentive for extended periods.