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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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 The site visit to a Jordanian police facility concluded that dogs were under constant threat of parvo, a deadly gastrointestinal illness, and were worked well past their retirement age, the report found. oregonlive, "U.S. officials knew bomb-sniffing dogs were dying from neglect in Jordan. They sent more.," 16 Sep. 2019 By maintaining a sense of collective victimhood, Netanyahu fuels the fear of extermination, and keeps the country in a constant state of terror. Ayelet Gundar-goshen, Time, "Netanyahu's Dangerous Accusations of Anti-Semitism Against HBO Show 'Our Boys'," 16 Sep. 2019 For months officials in the Gulf have warned that Saudi Arabia would eventually retaliate against Iran for the constant drone and missile attacks from Yemen. The Economist, "Drone attacks cut Saudi Arabia’s oil output by half," 15 Sep. 2019 To make matters worse, the name on the door was a constant reminder of Bodenheimer’s family and how the best of intentions can turn into a personal nightmare. Fortune, "Why the Most Successful Chefs and Restaurateurs Are Thankful for Their Failures," 14 Sep. 2019 Even more attractive to the space-plasma physicist is its constant display of auroras, which Pete ranks the most amazing in the solar system. Anchorage Daily News, "‘Planet walk’ puts some things in perspective," 14 Sep. 2019 Equally apparent, though, was my body’s newfound vulnerability, the constant self-consciousness, the ever-present possibility of violence. Devorah Heitner, Longreads, "What’s Happening to My Body?," 13 Sep. 2019 His constant companion is Victor, an all-black German shepherd who wears a flag patch and a campaign button on his vest. John J. Miller, National Review, "Don Bolduc’s New Hampshire Senate Campaign," 12 Sep. 2019 The underclassmen on those early teams were juniors and seniors as the program turned the corner, and served as constant reminders of how far Army had come since being ranked among the worst in the Bowl Subdivision. Paul Myerberg, USA TODAY, "With a program rebuilt, Army ready to make more history as when it visits No. 7 Michigan," 5 Sep. 2019 Recent Examples on the Web: Noun Bolton, the erstwhile national security adviser, was a rare constant in President Donald Trump's foreign policy. Nick Paton Walsh, CNN, "John Bolton's firing won't end the confusion over US foreign policy," 11 Sep. 2019 Gender bias is a constant in Katie Herzog’s work as president of Eastern Point Consulting Group in Newton, whose clients are mostly law firms. Katie Johnston, BostonGlobe.com, "Women facing ‘massive increase in hostility’ in workplace, #MeToo-era study says," 3 Sep. 2019 Athletics has remained a constant in your career on high school campuses in Katy ISD. Karen Zurawski, Houston Chronicle, "SUNDAY CONVERSATION: Deputy superintendent brings experience, leadership to Katy ISD," 25 Aug. 2019 Such turmoil had been a constant in the 93-year history of the newspaper. Mary Beth Sheridan, Washington Post, "Nicaragua’s Ortega is strangling La Prensa, one of Latin America’s most storied newspapers," 4 Aug. 2019 Up and down is a constant in the rankings of a recruit. Mark Heim | Mheim@al.com, al, "With recruits’ rankings always changing, is there a ‘Bama Bump?’ Scouting director weighs in," 1 Aug. 2019 The written word was a constant in his life; a sister, Naomi Cannon Brown, recalled that his father would read poems by Edgar Allan Poe aloud. Colin Moynihan, New York Times, "Steve Cannon, Whose Townhouse Was an East Village Salon, Dies at 84," 16 July 2019 Since the age of 3, encouraged by his father, Basil, who was a physical education teacher, exercise has always been a constant in the singer's life. Lauren Valenti, Vogue, "At 75, Mick Jagger Shares His Incredible Post-Heart Surgery Dance Moves," 15 May 2019 The expansion rate, called the Hubble constant , is one of the most important numbers in cosmology. NBC News, "The universe may be billions of years younger than we thought," 12 Sep. 2019

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

5 Nov 2019

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
How to pronounce constant (audio)

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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not being in agreement or harmony

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