The antonyms for the word "more irreverential" would be words that imply respect, reverence or decorum. Some antonyms for the word could be respectful, reverent, dutiful, obedient, compliant, regardful, courteous, deferential or formal. These words hold a sense of decorum and politeness in their meaning. When describing a person who is the opposite of irreverential, one could say they are respectful, courteous, obedient or regardful. It's important to choose the right word depending on the context in which it is used, as it has a significant impact on the overall meaning conveyed. Using antonyms can help to create contrast, depth and emphasis in literature, making the text more impactful.