Antonyms for the phrase "catch red-handed" would be words that describe actions or behaviors that are not associated with being caught or being guilty. Some possible antonyms for this phrase include avoid, escape, innocent, honesty, integrity, and sincere. These words describe the opposite of the act of being caught in the act of doing something wrong or deceitful. Instead, they describe qualities of being honest and truthful, or behaviors that do not involve any wrongdoing. Using these antonyms in place of the phrase "catch red-handed" can convey a sense of positivity and honesty, rather than suggesting deceit or wrongdoing.