Superadditive is an antonym of subadditive.
As adjectives the difference between superadditive and subadditive
is that
superadditive is (mathematicsof a function) such that the image of a sum is at least the sum of the images of the summands while
subadditive is (of a function) such that the image of a sum is at most the sum of the images of the summands.
superadditive English
Adjective
( )
(mathematics, of a function) Such that the image of a sum is at least the sum of the images of the summands.
 Knot genus is superadditive under band sum because $g(K\_1\backslash sharp\_bK\_2)\backslash ge\; g(K\_1)+g(K\_2)$.
Antonyms
* subadditive
Related terms
* superadditivity

subadditive English
Adjective
( )
(of a function) Such that the image of a sum is at most the sum of the images of the summands.
 The squareroot function is subadditive under addition because $\backslash sqrt\{a+b\}\backslash le\backslash sqrt\; a+\backslash sqrt\; b$.
Antonyms
* superadditive
Related terms
* subadditivity
