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

The rule gives the Dodgers some roster flexibility, because teams can only carry a maximum of 13 pitchers on their roster, but Ohtani’s designation essentially allows the Dodgers to carry 14 pitchers. —Michael Huntley, Oc Register, 25 Apr. 2026

Those charges carry a combined maximum of 11 years in prison. —Justin Muszynski, Hartford Courant, 24 Apr. 2026

Unauthorized access to computer material carries a maximum of seven years jail time, and/or a potential fine of up to $50,000, according to local laws. —Jazz Tangcay, Variety, 24 Apr. 2026

The room can hold a maximum of 200 guests. —Rob Crilly, The Washington Examiner, 24 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