exponential

adjective

ex·​po·​nen·​tial ˌek-spə-ˈnen(t)-shəl 

1

: of or relating to an exponent

2

: involving a variable in an exponent

10^x is an exponential expression

3

: expressible or approximately expressible by an exponential function

especially : characterized by or being an extremely rapid increase (as in size or extent)

an exponential growth rate

exponentially

ˌek-spə-ˈnen(t)-sh(ə-)lē 

adverb

Examples of exponential in a Sentence

The business has experienced several years of exponential growth.

Prices have increased at an exponential rate.

10³ is an exponential expression.

Recent Examples on the Web

When building a new System of Execution, the return can be exponential. —Peter Bendor-Samuel, Forbes.com, 19 June 2025

The building rates were exponential, just so many houses being built. —Zoey Lyttle, People.com, 19 June 2025

The introduction of new brands since the 1980s, like Original New York Seltzer and Hal’s New York, and the exponential growth in popularity today is largely credited to people seeking healthy alternatives to sugary drinks. —Liza Weisstuch, Smithsonian Magazine, 12 June 2025

Yahoo salespeople could then turn around and point to their exponential ad sales curves, which caused Yahoo stock to rise. —ArsTechnica, 10 June 2025

Word History

First Known Use

1701, in the meaning defined at sense 1

Phrases Containing exponential

• exponential function

Rhymes for exponential

• consequential
• deferential
• evidential
• existential
• influential
• nonessential
• penitential
• precedential
• preferential
• presidential
• providential
• referential

Kids Definition

exponential

adjective

ex·​po·​nen·​tial ˌek-spə-ˈnen-chəl 

: of, relating to, or involving an exponent

xⁿ is an exponential expression

exponentially

-ˈnench-(ə-)lē 

adverb

Medical Definition

exponential

adjective

ex·​po·​nen·​tial ˌek-spə-ˈnen-chəl 

: expressible or approximately expressible by an exponential function

an exponential growth rate

exponentially

-ˈnench-(ə-)lē 

adverb