When we talk about antonyms for the word "un-wise", we are essentially looking for words that convey the opposite meaning. There are several antonyms for unwise, such as "wise," "shrewd," "prudent," "sensible," and "astute." These words indicate a person who is thoughtful, intelligent, and able to make good decisions. Antonyms of unwise would be in contrast with those who are rash, impulsive, and ignorant, which are the characteristics typically associated with unwise. Therefore, using antonyms can help in better understanding words and their intended meanings, and choosing the right word to achieve a better understanding of the situation.