CONSTANT Synonyms: 147 Similar and Opposite Words

Q: How is the word 'constant' distinct from other similar adjectives?

Some common synonyms of constant are faithful , loyal , resolute , staunch , and steadfast . While all these words mean "firm in adherence to whatever one owes allegiance," constant stresses continuing firmness of emotional attachment without necessarily implying strict obedience to promises or vows. // constant friends

Q: When might 'faithful' be a better fit than 'constant'?

In some situations, the words faithful and constant are roughly equivalent. However, 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

Q: When would 'loyal' be a good substitute for 'constant'?

Although the words loyal and constant have much in common, loyal implies a firm resistance to any temptation to desert or betray. // remained loyal to the czar

Q: When is it sensible to use 'resolute' instead of 'constant'?

The words resolute and constant are synonyms, but do differ in nuance. Specifically, resolute implies firm determination to adhere to a cause or purpose. // a resolute ally

Q: In what contexts can 'staunch' take the place of 'constant'?

The synonyms staunch and constant are sometimes interchangeable, but staunch suggests fortitude and resolution in adherence and imperviousness to influences that would weaken it. // a staunch defender of free speech

Q: When can 'steadfast' be used instead of 'constant'?

The meanings of steadfast and constant largely overlap; however, steadfast implies a steady and unwavering course in love, allegiance, or conviction. // steadfast in their support

constant

adjective

ˈkän(t)-stənt

Definition of constant

as in steady

not undergoing a change in condition change is the only constant thing in the world of fashion

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in frequent

appearing or occurring repeatedly from time to time I get constant headaches during humid weather

Synonyms & Similar Words

Antonyms & Near Antonyms

as in steadfast

firm in one's allegiance to someone or something constant friends during times both good and bad

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Antonyms & Near Antonyms

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How is the word constant distinct from other similar adjectives?

Some common synonyms of constant are faithful, loyal, resolute, staunch, and steadfast. While all these words mean "firm in adherence to whatever one owes allegiance," constant stresses continuing firmness of emotional attachment without necessarily implying strict obedience to promises or vows.

constant friends

When might faithful be a better fit than constant?

In some situations, the words faithful and constant are roughly equivalent. However, 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

When would loyal be a good substitute for constant?

Although the words loyal and constant have much in common, loyal implies a firm resistance to any temptation to desert or betray.

remained loyal to the czar

When is it sensible to use resolute instead of constant?

The words resolute and constant are synonyms, but do differ in nuance. Specifically, resolute implies firm determination to adhere to a cause or purpose.

a resolute ally

In what contexts can staunch take the place of constant?

The synonyms staunch and constant are sometimes interchangeable, but staunch suggests fortitude and resolution in adherence and imperviousness to influences that would weaken it.

a staunch defender of free speech

When can steadfast be used instead of constant?

The meanings of steadfast and constant largely overlap; however, steadfast implies a steady and unwavering course in love, allegiance, or conviction.

steadfast in their support

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of constant This constant output is different from solar and wind power, which change depending on the weather. — Aman Tripathi, Interesting Engineering, 15 July 2026 Change is the one constant of life on Earth; that constancy is exactly what makes change so difficult to spot. — Literary Hub, 15 July 2026 While there, the team was under constant pressure to build and quickly scale, sometimes working in difficult conditions and facing infrastructure struggles, like reliable bathrooms. — Samantha Subin, CNBC, 14 July 2026 This constant immersion means that when students enter their live sessions with a human teacher, they are often already primed with the confidence to speak. — Matthew Kayser july 14, Miami Herald, 14 July 2026 See All Example Sentences for constant

Recent Examples of Synonyms for constant

Adjective

The swings for oil prices halted what had been a steady decline in gasoline prices, and the cost for a gallon climbed a nickel overnight, according to motor club AAA.

— Stan Choe, Los Angeles Times, 9 July 2026
Another reason why the outlook for oil is remaining steady is because trading during this conflict has proven the extent of the ample energy supplies from America.

— Brian Sullivan, CNBC, 9 July 2026

Definition of steady

Adjective

To reduce risk during outdoor work, the Occupational Safety and Health Administration (OSHA) recommends scheduling frequent rest breaks in shaded or air-conditioned environments.

— NC Weather Bot, Charlotte Observer, 10 July 2026
Exercise is the most frequent trigger of canine heatstroke, so walk only in early morning or late evening and avoid hot pavement, according to the RSPCA.

— Hanna Wickes, Kansas City Star, 9 July 2026

Definition of frequent

Adjective

To his supporters, Iran’s late Supreme Leader Ayatollah Ali Khamenei was the steadfast, fearless leader who transcended mere politics and inspired devotion.

— Xiaoqian Lin, CNN Money, 6 July 2026
Each project generated steadfast opposition from the city's neighborhoods, calling into question how the city should regulate the advanced technology centers.

— Alysa Guffey, IndyStar, 2 July 2026

Definition of steadfast

Adjective

The soccer world has moved on from the idea that a coach must share his players' blood and that a team’s identity is just a reflection of an unchanging national character.

— Michael Morris, Time, 1 July 2026
Typically, people recover meteorites in geologically unchanging regions, such as deserts or ice fields, where the meteorites stand out against the landscape.

— Adam Lark, Scientific American, 28 June 2026

Definition of unchanging

Adjective

In Florida, a person found not guilty by reason of insanity may be placed on conditional release, which requires a treatment plan and periodic monitoring.

— Grethel Aguila, Miami Herald, 15 July 2026
The whole periodic chart of elements and metals and all kinds of chemical concoctions found their way into the ground and the groundwater.

— Patt Morrison, Los Angeles Times, 15 July 2026

Definition of periodic

Adjective

Lithuania, which borders the Russian exclave of Kaliningrad, has been one of Ukraine's staunchest allies during Russian President Vladimir Putin's more than four-year conflict with Kyiv, providing extensive military equipment and financial support.

— Sam Meredith, CNBC, 2 July 2026
Margo, a staunch Conservative neighbor of the couple, was disapproving of the pair’s decisions, and Keith’s performance would win her the 1977 BAFTA TV Award for best light entertainment.

— Lily Ford, HollywoodReporter, 29 June 2026

Definition of staunch

Adjective

For a safer outdoor work environment, follow the Occupational Safety and Health Administration (OSHA)'s guidance by scheduling regular rest breaks in shaded or air-conditioned places.

— CA Weather Bot, Sacbee.com, 14 July 2026
The regular portal window normally opens right after the championship game and lasts for 15 days.

— Tobias Bass, New York Times, 14 July 2026

Definition of regular

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constantly

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“Constant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/constant. Accessed 17 Jul. 2026.

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Synonyms of constant

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