What are the opposite words for I'm afraid so?

"I'm afraid not" is a commonly used antonym for "I'm afraid so." This phrase is often used when the answer to a question or statement is negative. For example, if someone asks if a certain event is happening, and the answer is no, one might say "I'm afraid not." Another antonym for "I'm afraid so" is simply "no." However, the use of "I'm afraid not" can soften the blow of a negative answer and is considered more polite in social situations. Overall, these antonyms provide a way to accurately communicate the opposite meaning of "I'm afraid so" in various contexts.