The word "unsagacious" means lacking in wisdom or insight. To find antonyms for "more unsagacious," we need to look for words that convey the opposite meaning. Some possible antonyms could include "wise," "prudent," "astute," "clever," "intelligent," "discerning," "perceptive," "shrewd," "sensible," "judicious," "informed," "knowledgeable," "insightful," and "smart." These words suggest someone who is wise, thoughtful, and capable of making good decisions. By using these antonyms, we can convey a positive attitude towards the person or situation, and show that wisdom and intelligence are valued traits.