Snippersnapper is a colloquial term used to describe a young or inexperienced person, often with a hint of disrespect or disdain. Some antonyms for snippersnapper that convey a more positive or respectful tone include seasoned, wise, mature, experienced, skilled, and knowledgeable. Other antonyms that imply a sense of authority or leadership could be elder, senior, or sage. Alternatively, if one wanted to convey a more friendly or endearing term to describe someone young or inexperienced, antonyms could include green, fresh, innocent, new, or budding. Ultimately, the choice of antonyms for snippersnapper will depend on the context and tone of the speaker or writer.