Collative is a less common word with an important meaning, referring to something that is gathered or collected together in one place. There are several synonyms that can be used to convey the same idea. One such synonym is cumulative, which implies an accumulation or addition of items or information. Another term that can be used interchangeably is collective, emphasizing the idea of bringing various elements or individuals together. Additionally, the word aggregated can be used to describe the process of gathering multiple items into a cohesive whole. Overall, these synonyms effectively capture the essence of collative, providing alternative options to convey the same meaning.