constant

adjective
con·​stant | \ ˈkän(t)-stənt How to pronounce constant (audio) \

Definition of constant

 (Entry 1 of 2)

1 : marked by firm steadfast resolution or faithfulness : exhibiting constancy of mind or attachment a constant friend
2 : invariable, uniform a constant flow should be stored at a constant temperature
3 : continually occurring or recurring : regular a constant annoyance suffers from constant headaches

constant

noun

Definition of constant (Entry 2 of 2)

: something invariable or unchanging: such as
a : a number that has a fixed value in a given situation or universally or that is characteristic of some substance or instrument
b : a number that is assumed not to change value in a given mathematical discussion
c : a term in logic with a fixed designation

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Other Words from constant

Adjective

constantly adverb

Choose the Right Synonym for constant

Adjective

faithful, loyal, constant, staunch, steadfast, resolute mean firm in adherence to whatever one owes allegiance. faithful implies unswerving adherence to a person or thing or to the oath or promise by which a tie was contracted. faithful to her promise loyal implies a firm resistance to any temptation to desert or betray. remained loyal to the czar constant stresses continuing firmness of emotional attachment without necessarily implying strict obedience to promises or vows. constant friends staunch suggests fortitude and resolution in adherence and imperviousness to influences that would weaken it. a staunch defender of free speech steadfast implies a steady and unwavering course in love, allegiance, or conviction. steadfast in their support resolute implies firm determination to adhere to a cause or purpose. a resolute ally

continual, continuous, constant, incessant, perpetual, perennial mean characterized by continued occurrence or recurrence. continual often implies a close prolonged succession or recurrence. continual showers the whole weekend continuous usually implies an uninterrupted flow or spatial extension. football's oldest continuous rivalry constant implies uniform or persistent occurrence or recurrence. lived in constant pain incessant implies ceaseless or uninterrupted activity. annoyed by the incessant quarreling perpetual suggests unfailing repetition or lasting duration. a land of perpetual snowfall perennial implies enduring existence often through constant renewal. a perennial source of controversy

Examples of constant in a Sentence

Adjective

He suffers from constant headaches. Her constant chatter was a nuisance. The house is in constant need of repairs. The scar serves as a constant reminder of the accident. a problem demanding constant attention The equipment should be stored at a constant temperature. He kept the car's speed constant. She has struggled to maintain a constant weight. They remained constant friends throughout their lives.

Noun

Her job was the one constant in her life.
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Recent Examples on the Web: Adjective

Amidst all of the plotting, scheming, and constantly changing hierarchy of the court, one thing is a constant ray of light: The woman’s clothes are to die for! Alexandra Macon, Vogue, "In The Spanish Princess, Catherine of Aragon’s Wedding Dress May Be All the Bridal Inspiration You Really Need," 24 Apr. 2019 Then there’s the other toll of all this constant racket. Meghan Rabbitt, Woman's Day, "How To Recapture Peace and Quiet In a Noisy World," 27 Mar. 2019 Burnout is probably the biggest risk that influencers face — constant public scrutiny, as any celebrity can tell you, is exhausting. Elizabeth Lopatto, The Verge, "Elon Musk is the first influencer CEO," 21 Dec. 2018 David Brill, whose parents Suzeanna and Matthew spent six days in jail after their arrest, allegedly suffers from near-constant seizures. Alexandria Hein, Fox News, "Parents face charge after giving teen marijuana to treat alleged seizures," 2 Oct. 2018 The probe's instruments showed the band of the Milky Way and picked up evidence of the solar wind, the constant stream of particles emanating from the sun. Elizabeth Howell, Space.com, "Here Comes the Sun! Parker Solar Probe Instruments See 'First Light'," 25 Sep. 2018 But nothing the Clinton White House did comes anywhere near the constant barrage of conspiracy mongering that Donald Trump is using against special counsel Robert Mueller. Jeet Heer, The New Republic, "Trump won’t like Brett Kavanaugh’s position on independent investigations of the White House.," 12 July 2018 The 800-year-old structure requires near-constant upkeep and frequent renovations, like the one that was taking place when the fire caught yesterday. Hadley Keller, House Beautiful, "Notre Dame: An In-Depth Look at What Was Lost and What it Will Take to Rebuild," 16 Apr. 2019 Companies are trying to solve the problem without having store workers undertake near-constant inventory counts. Jennifer Smith, WSJ, "New Job for Robots: Taking Stock for Retailers," 27 Jan. 2019

Recent Examples on the Web: Noun

In a mature economy, with all the infrastructure in place, the time constants are just slower. David Roberts, Vox, "Climate change policy can be overwhelming. Here’s a guide to the policies that work.," 30 Nov. 2018 Aside from Votto, the only other constant has been Price, whose first season was that fateful 2014 campaign and who has since overseen a roster that never gets better because the front office refuses to improve it. Jon Tayler, SI.com, "The Reds Fired Manager Bryan Price, But That Won't Save the Perpetually Rebuilding Franchise," 19 Apr. 2018 Their stories all share one constant: Somebody at their college cared about them, and went above and beyond to help. Katherine Long, The Seattle Times, "Students who beat steep odds credit Washington educators who wouldn’t give up on them," 4 Feb. 2019 The laws of physics in our universe include a number of fundamental constants, such as the speed of light. Charles Q. Choi, Space.com, "Why Alternate Universes Might Also Host Life Around their Stars," 26 Sep. 2018 Miazga, 22, was a crucial constant (and even an occasional captain) for a Vitesse Arnhem side that finished sixth in the Netherlands and qualified for the 2018-19 Europa League. Brian Straus, SI.com, "Christian Pulisic Returns as USMNT Roster Focuses on Youth for Upcoming Friendlies," 20 May 2018 Tucker won’t be so hot every night, but his defense is a constant, and don’t leave him alone in the corners. Bruce Jenkins, San Francisco Chronicle, "In Warriors-Rockets smallball world, it’s Hamptons 5 vs. the Tuckwagon," 17 May 2018 The one constant through all of this -- LeBron James. Ted Crow, cleveland.com, "Cleveland Cavaliers, LeBron James vs. Indiana Pacers: Crowquill," 15 Apr. 2018 But there's been one constant: ambition, pure and unadulterated. Jocelyn Noveck, Town & Country, "Why Is Hillary Clinton Still So Hard to Define?," 25 July 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'constant.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of constant

Adjective

14th century, in the meaning defined at sense 1

Noun

1832, in the meaning defined above

History and Etymology for constant

Adjective and Noun

Middle English, from Middle French, from Latin constant-, constans, from present participle of constare to stand firm, be consistent, from com- + stare to stand — more at stand

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Statistics for constant

Last Updated

7 May 2019

Look-up Popularity

Time Traveler for constant

The first known use of constant was in the 14th century

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More Definitions for constant

constant

adjective

English Language Learners Definition of constant

 (Entry 1 of 2)

: happening all the time or very often over a period of time
: staying the same : not changing
formal + literary : always loyal

constant

noun

English Language Learners Definition of constant (Entry 2 of 2)

: something that stays the same : something that does not change
technical : a quantity or number whose value does not change

constant

adjective
con·​stant | \ ˈkän-stənt How to pronounce constant (audio) \

Kids Definition of constant

1 : remaining steady and unchanged a constant temperature
2 : occurring continuously or following one after another constant headaches
3 : always faithful and true constant friends

Other Words from constant

constantly adverb

constant

adjective
con·​stant | \ ˈkän(t)-stənt How to pronounce constant (audio) \

Medical Definition of constant

 (Entry 1 of 2)

: remaining unchanged

Other Words from constant

constantly adverb

constant

noun

Medical Definition of constant (Entry 2 of 2)

: something invariable or unchanging especially : a number that has a fixed value in a given situation or universally or that is characteristic of some substance or instrument

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Comments on constant

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