The word "summating" means to bring together or combine. Its antonyms are words that convey the opposite meaning, which includes words like separating, dividing, dispersing, dissipating, and scattering. Such words are used when discussing things that are not brought together, such as separating a group of people, dividing a project into smaller tasks, or scattering the pieces of a puzzle. In contrast to summating, these words convey the idea that things are not brought together and unified but rather separated and scattered apart. Knowing the antonyms of summating can help diversify your vocabulary and better express ideas that require the opposite idea of combining.