Antonyms for the phrase "taking the bull by the horns" could be interpreted as avoiding, procrastinating, or being hesitant. These antonyms suggest a lack of initiative or unwillingness to take on challenges or confront obstacles head-on. Alternatively, one might use phrases like "sidestepping the issue" or "passing the buck" to describe these behaviors. In contrast, someone who takes the bull by the horns is seen as confident, decisive, and willing to take risks. This phrase is often used in contexts that require leadership or action, such as in the business world or in politics. In any case, it's clear that the opposite of taking the bull by the horns is a less-than-proactive approach to problem-solving.