The phrase "as bold as a lion" is frequently used to describe someone who is fearless and confident. However, there are several alternative phrases that can convey the same meaning. Words such as "courageous", "fearless", and "intrepid" are synonyms that could be used instead. Other options include "bravehearted", "dauntless", "valiant", and "gallant". These synonyms express the same level of determination and bravery as a lion and can be used to describe people who have the same qualities. So, next time you want to describe someone as bold as a lion, consider using one of these synonyms instead to add variety to your writing.