The word "entirenesses" is not commonly used in everyday language, and as a result, there aren't many synonyms available. However, there are other words that can be used to convey similar meanings. One of them is "completeness", which refers to the state of being whole or containing all parts. Another synonym for "entirenesses" is "totality", which means the whole of something. "Integrity" is another possible synonym, referring to the quality of being complete or unbroken. Finally, "unity" can also be used to describe the state of being whole or undivided, and could be a good alternative to "entirenesses" in some contexts.