maximum

noun

max·​i·​mum ˈmak-s(ə-)məm 

plural maxima ˈmak-sə-mə  or maximums ˈmak-s(ə-)məmz 

1

a

: the greatest quantity or value attainable or attained

b

: the period of highest, greatest, or utmost development

2

: an upper limit allowed (as by a legal authority) or allowable (as by the circumstances of a particular case)

3

: the largest of a set of numbers

specifically : the largest value assumed by a real-valued continuous function defined on a closed interval

maximum adjective

Synonyms of maximum

• max
• most
• utmost

Examples of maximum in a Sentence

achieved the maximum

Recent Examples on the Web

In the casting category, the number of statuettes awarded will increase from a maximum of two to three. —Clayton Davis, Variety, 1 May 2026

Existing storage facilities within Beijing’s Sixth Ring Road—an encircling expressway about 15 to 20 miles from the city center—are limited to storing a maximum of three drones or 10 core components while also being required to undergo police inspections. —Jeremy Hsu, ArsTechnica, 30 Apr. 2026

The government said the defendants, all of whom are believed to reside in Mexico, face up to a maximum of life in prison if they are convicted. —Tom Winter, NBC news, 30 Apr. 2026

He was sentenced to a new maximum of 20 years in prison. —Emily Blackwood, PEOPLE, 30 Apr. 2026

Word History

Etymology

Latin, neuter of maximus biggest — more at maxim

First Known Use

1663, in the meaning defined at sense 1a

Phrases Containing maximum

• maximum likelihood
• maximum occupancy
• maximum security prison

Kids Definition

maximum

noun

max·​i·​mum ˈmak-s(ə-)məm 

plural maxima -sə-mə  or maximums

1

: the highest quantity, value, or development

2

: an upper limit allowed

maximum adjective

Medical Definition

maximum

noun

max·​i·​mum ˈmak-s(ə-)məm 

plural maxima -sə-mə  or maximums

1

a

: the greatest quantity or value attainable or attained

b

: the period of highest, greatest, or utmost development

2

: an upper limit allowed (as by a legal authority) or allowable (as by the circumstances of a particular case)

maximum adjective