Collectivenesses refers to the state of being collective or working together as a group. As such, antonyms for this word would refer to the opposite, such as individualism or isolationism. Other antonyms could include separation, divide, segregation, or fragmentation. These words suggest a lack of unity or a breakdown of collective effort. Collectivenesses implies cooperation and coordination, so antonyms would reflect a lack of such attributes. The opposite of collectivenesses can also mean the rejection of group thinking and the promotion of individuality, as well as the presence of division and differences of ideology.