The antonyms for the word "more anecdotic" are serious, straightforward, factual, and empirical. While anecdotal stories can be entertaining and interesting, they are often subjective and lack evidence or accuracy. In contrast, serious or factual information is often backed up by research, evidence, and statistics, making it more reliable and trustworthy. Empirical data is also based on observation or experience, but it is often collected through more structured and systematic methods to ensure accuracy and consistency. Using antonyms for "more anecdotic" can help to promote more credible and authoritative sources of information, which is especially important in fields such as science, medicine, and journalism.