inverse

1 of 2

adjective

in·​verse (ˌ)in-ˈvərs 

ˈin-ˌvərs

1

: opposite in order, nature, or effect

2

: being an inverse function

inverse sine

inverse

2 of 2

noun

1

: something of a contrary nature or quality : opposite, reverse

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 (such 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 in a Sentence

Adjective

Addition and subtraction are inverse operations.

Noun

the inverse of your argument

Recent Examples on the Web

Adjective

Betting on upside for the fund means betting on downside for chips, as the fund targets 300% of the inverse daily move in the NYSE Semiconductor Index. — Oliver Renick, CNBC, 23 June 2026

The researchers designed the structures using inverse topology optimization. — New Atlas, 19 June 2026

Noun

Options volume in Direxion's triple-levered inverse semiconductor ETF (SOXS) is more than three times the daily average the past month and calls are outpacing puts by more than six-to-one, according to data from ThinkOrSwim. — Oliver Renick, CNBC, 23 June 2026

The plot was an inverse of the original's Sandy (Olivia Newton-John) and Danny (John Travolta) dynamic and marked one of Pfeiffer's earliest roles on the big screen. — Kate Hogan, PEOPLE, 23 June 2026

Word History

Etymology

Adjective

Middle English, turned upside down, from Latin inversus, from past participle of invertere

First Known Use

Adjective

15th century, in the meaning defined at sense 1

Noun

1658, in the meaning defined at sense 1

Phrases Containing inverse

• additive inverse
• inverse function
• inverse square law
• inverse variation
• multiplicative inverse

Rhymes for inverse

• adverse
• averse
• coerce
• disburse
• disperse
• diverse
• immerse
• obverse
• perverse
• rehearse
• reverse
• transverse

Kids Definition

inverse

1 of 2 adjective

in·​verse (ˈ)in-ˈvərs 

ˈin-vərs

1

: opposite in order, nature, or effect

an inverse relationship between interest rates and houses sold

2

: being a mathematical operation opposite in effect to another

addition and subtraction are inverse operations

inverse

2 of 2 noun

in·​verse

ˈin-ˌvərs, 

(ˈ)in-ˈvərs

: something inverse or resulting in or from inversion