The word "un-dividednesses" is a complex and multi-syllabic word that may be difficult to find synonyms for. However, there are a few words that can be used as suitable replacements for this complex term. For instance, words such as "unity," "oneness," "completeness," and "integrity" all convey the same general idea as "un-dividednesses." Similarly, words such as "coherence," "consistency," and "wholeness" can also be substituted for this word. Ultimately, the key is to understand the intended meaning behind "un-dividednesses" and to find words that convey that same sense of unity and completeness.