# inverse

^{1}in·verse

*adjective*\(ˌ)in-ˈvərs, ˈin-ˌ\

—used to describe two things that are related in such a way that as one becomes larger the other becomes smaller

: opposite in nature or effect

## Full Definition of *INVERSE*

1

**:**opposite in order, nature, or effect

2

**:**being an inverse function <

*inverse*sine>

## Examples of *INVERSE*

- Addition and subtraction are
*inverse*operations.

## Origin of *INVERSE*

Middle English, turned upside down, from Latin

*inversus,*from past participle of*invertere*First Known Use: 15th century

^{2}inverse

*noun*

: something that is the opposite of something else

## Full Definition of *INVERSE*

2

**:**a proposition or theorem formed by contradicting both the subject and predicate or both the hypothesis and conclusion of a given proposition or theorem <the

*inverse*of “if A then B” is “if not-A then not-B”> — compare contrapositive

3

*a*

**:**inverse function;

*also*

**:**an operation (as subtraction) that undoes the effect of another operation

*b*

**:**a set element that is related to another element in such a way that the result of applying a given binary operation to them is an identity element of the set

## Examples of *INVERSE*

- the
*inverse*of your argument

## First Known Use of *INVERSE*

circa 1681

## Other Logic Terms

## Learn More About *INVERSE*

## Browse

Next Word in the Dictionary: inverse cosecant

Previous Word in the Dictionary: Inverness

All Words Near: inverse

Previous Word in the Dictionary: Inverness

All Words Near: inverse

**Ask The Editor** Videos

## Seen & Heard

What made you want to look up *inverse*? Please tell us where you read or heard it (including the quote, if possible).