opposite or contrary in position, direction, order, or effect:numerous studies have shown an inverse relationship between exercise and the risk of heart disease
chiefly Mathematics produced from or related to something else by a process of inversion:inverse logarithms
1 [usually in singular] something that is the opposite or reverse of something else:power is the inverse of dependence
2 Mathematics a reciprocal quantity, mathematical expression, geometric figure, etc. which is the result of inversion: the age of such a universe is simply the inverse of the Hubble constant an element which, when combined with a given element in an operation, produces the identity element for that operation.