When it comes to synonyms for "most blatantly," there are several options to choose from. Some examples include "most shamelessly," "most overtly," "most conspicuously," "most flagrantly," and "most brazenly." Each of these synonyms can be used interchangeably with "most blatantly" to convey the same sense of something being done in an unmistakably obvious or intentional manner. Depending on the context in which the term is being used, one of these synonyms may be a better fit than the others. However, all of them serve as effective substitutes for the phrase "most blatantly".