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

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

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 To DuBose, who knew professional football players, that constant display of team merchandise seemed unusual. — Kurt Knutsson, FOXNews.com, 14 Oct. 2026 Unlike via old-school shopping channels, where brands are in constant rotation and must make their case in a limited amount of time, on TikTok, longer Lives are better. — Noor Lobad, Footwear News, 13 Oct. 2026 Duneland’s enrollment figures have stayed relatively constant over the years as there are 5,774 students counted at the start of this school year, down from 5,829 students last school year. — Jim Woods, Chicago Tribune, 13 Oct. 2026 Dealing with the constant evolution of novel synthetics is like playing a kind of drug whack-a-mole. — Mary Jane Gibson, Rolling Stone, 13 Oct. 2026 See All Example Sentences for constant

Recent Examples of Synonyms for constant

Adjective

Because the switching happens thousands of times a second, the device can hold voltage steady, absorb a disturbance or operate in reverse, pushing power backward from batteries toward the grid.

— Alex Pasternack, Scientific American, 20 Oct. 2026
What everyday movements reveal Standing from a chair requires a stable base, enough ankle and hip mobility to shift your weight forward, lower body and core strength to lift yourself, and balance to keep you steady.

— Dana Santas, CNN Money, 20 Oct. 2026

Definition of steady

Adjective

The scale of the decline triggered a circuit breaker, temporarily halting trading on the exchange — a frequent occurrence this year in a stock market dominated by just two stocks.

— Hanna Ziady, CNN Money, 15 Oct. 2026
The survey also found links between binge eating and frequent social media use (checking platforms at least hourly), poor mental health, and suicidality.

— Sarah Todd, STAT, 15 Oct. 2026

Definition of frequent

Adjective

Meanwhile, waiting in the wings is a man of few words — and initially, few feelings, or so thinks Marianne — the steadfast Colonel Brandon (Herbert Nordrum).

— ABC News, ABC News, 14 Oct. 2026
The poem continues with more verses about Burns’s steadfast love, but beyond that, nothing really happens.

— René Ostberg, Encyclopedia Britannica, 14 Oct. 2026

Definition of steadfast

Adjective

Before the recent barn owl sightings, Williams and her husband heard periodic screeching noises outside going back to early September.

— ABC News, ABC News, 15 Oct. 2026
Screeching was heard by residents Before the recent barn owl sightings, Williams and her husband heard periodic screeching noises outside going back to early September.

— Joseph B. Frederick, Fortune, 15 Oct. 2026

Definition of periodic

Adjective

Republicans coalesced around Hilton after the president endorsed him over his GOP rival, Riverside County Sheriff Chad Bianco, a staunch Trump supporter who later said the endorsement made Hilton unelectable.

— Los Angeles Times, Los Angeles Times, 12 Oct. 2026
Democrats must decide whether to take the deal in front of them or, possibly with a congressional majority next year, craft a version more to their liking that may be met with staunch GOP opposition and, thus, gridlock purgatory yet again.

— Jordan Blum, Fortune, 11 Oct. 2026

Definition of staunch

Adjective

Compact optical clocks could eventually contribute to such systems by providing stable timing references onboard vehicles, reducing dependence on external signals.

— Neetika Walter, Interesting Engineering, 17 Oct. 2026
Under some circumstances, however, solutions exist that allow for a stable system even if two such planets interact.

— Phil Plait, Scientific American, 16 Oct. 2026

Definition of stable

Adjective

Based on recent comments from Spoelstra, Richards is likely sticking around into the regular season.

— Anthony Chiang, Miami Herald, 17 Oct. 2026
The 2017 draft pick discovered blood clots in his lung this summer and missed training camp and the first five weeks of the regular season because of it.

— Alex Zietlow, Charlotte Observer, 17 Oct. 2026

Definition of regular

Browse Nearby Words

constancy

constant

constantly

See all Nearby Words

Cite this Entry

Style

“Constant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/constant. Accessed 21 Oct. 2026.

Copy Citation

Synonyms of constant

adjective

Synonym Chooser

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on constant

More from Merriam-Webster

Word of the Day

jilt

Popular in Grammar & Usage

Merriam-Webster’s Great Big List of Words You Love to Hate

'Can' vs. 'May'

'Affect' vs. 'Effect'

More Commonly Mispronounced Words

Is it 'nerve-racking' or 'nerve-wracking'?

Popular in Wordplay

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Did 'orange' the fruit or the color come first?

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World

Popular

Merriam-Webster’s Great Big List of Words You Love to Hate

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Games & Quizzes