When thinking of antonyms for the phrase "more earthshattering," words that come to mind include inconsequential, unimportant, trivial, minor, insignificant, ordinary, and commonplace. These words are opposites of the impactful and powerful connotations that come with the term "earthshattering." While "earthshattering" implies a significant event or occurrence, antonyms such as trivial suggest something that holds little importance or significance. Other antonyms, like ordinary or commonplace, imply something that is standard or expected, lacking the magnitude or intensity of an earthshattering event. In short, these antonyms provide a range of words to describe something that is not noteworthy or fails to make a significant impact.