When looking for synonyms for the phrase "more all-comprehensive," there are several options available that convey the same meaning. The phrase itself suggests something that is more inclusive, complete, and thorough. For instance, some synonyms for this phrase could be more exhaustive, more comprehensive, more inclusive, more thorough, more all-encompassing, more complete, or more extensive. All these phrases have the same essence of coverage and inclusiveness. Such words are useful, for example, when describing a report, survey, or study that aims to capture all aspects of a particular topic or subject. Therefore, it's essential to choose the right synonyms that meet your intended purpose.