What is another word for subadditive?
Pronunciation: [sʌbˈadɪtˌɪv] (IPA) 
Subadditive is a mathematical term used to describe a function that does not obey the triangle inequality. Synonyms for subadditive include "sublinear," "submodular," "concave," and "economies of scale." Sublinear refers to a function that grows slower than a linear function, while submodular describes a function that exhibits diminishing returns. Concave functions are those that curve downward, while economies of scale are where costs decrease as production increases. These terms are all similar to subadditive in that they describe a type of function or relationship that is not entirely additive. Understanding these synonyms helps to fully comprehend the concept of subadditivity in mathematics.
