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

• max
• most
• outside

Examples of maximum in a Sentence

achieved the maximum

Recent Examples on the Web

That language created a very costly penalty, and forced countries to allow their maximum to be at least 5% of net turnover, but gave them the option to go even higher. —Jon McGowan, Forbes, 24 Feb. 2025

If approved, able-bodied AHCCCS recipients would have to work or attend school at least 20 hours per week and could receive health coverage for a maximum of five years. —Jessica Boehm, Axios, 24 Feb. 2025

The Heat currently are at the maximum of three such players, with Josh Christopher, Isaiah Stevens and Dru Smith under two-way deals. —Ira Winderman, Sun Sentinel, 22 Feb. 2025

The original 150-year-old sewer system was severely overwhelmed, having been designed to serve a maximum of four million people but required to handle over double that, resulting in human waste and stormwater runoff being regularly dumped in the Thames, a major river in the area. —Adam Williams, New Atlas, 21 Feb. 2025

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