There are multiple synonyms for the word "more unwittingly" that you can use to make your sentences more interesting and diverse. The term "more unintentionally" is quite similar to "more unwittingly," and it means that someone did something without intending to do so. Other alternatives include "more inadvertently," "more unconsciously," and "more unknowingly." Each of these terms has a slightly different nuance but can be used interchangeably in most contexts. However, one should be careful while using these terms as they all suggest that the action was done unintentionally, without any prior knowledge or awareness. Overall, using these synonyms can make your writing more engaging and help you avoid repeating the same word.