The antonyms for the word "more sensationalistic" are words that describe something which is not sensational or exaggerated. These words include 'balanced,' 'objective,' 'factual,' 'creditable,' 'accurate,' 'levelheaded,' 'moderate,' 'restrained,' 'reasonable,' 'calm,' and 'measured.' The use of these antonyms in writing or reporting can help to present information in a more levelheaded and factual manner and avoid creating unnecessary hype or sensationalism. It is important to remember that journalism ethics require journalists to report the truth impartially, with accuracy and balance, without resorting to sensationalism or bias. Therefore, using appropriate antonyms can help writers and reporters to maintain a high degree of professionalism and uphold the principles of good journalism.