Synonyms of constant

constant

adjective

ˈkän(t)-stənt 

1

as in steady

not undergoing a change in condition

change is the only constant thing in the world of fashion

Synonyms & Similar Words

• steady
• unchanging
• stable
• unchangeable
• enduring
• unvarying
• stationary
• changeless
• lasting
• fixed
• invariable
• continuing
• permanent
• on an even keel
• on even keel
• immutable
• unalterable
• durable
• ceaseless
• fast
• hard-and-fast
• inflexible
• established
• settled
• set

Antonyms & Near Antonyms

• volatile
• unpredictable
• changing
• uncertain
• variable
• unstable
• varying
• fluid
• fluctuating
• capricious
• inconstant
• mercurial
• fickle
• unsettled
• unsteady
• flexible
• transient
• adaptable
• changeable
• momentary
• mutable
• skittish
• changeful
• transitory
• fleeting
• ephemeral
• evanescent
• alterable
• kaleidoscopic
• phantasmagoric
• phantasmagorical

2

as in frequent

appearing or occurring repeatedly from time to time

I get constant headaches during humid weather

Synonyms & Similar Words

• frequent
• periodic
• repeated
• regular
• steady
• continual
• periodical
• habitual
• recurrent
• intermittent
• recurring
• cyclical
• cyclic
• chronic
• hourly
• usual
• round-the-clock
• around-the-clock
• expected
• confirmed
• inveterate
• 24-7
• 24/7

Antonyms & Near Antonyms

• infrequent
• occasional
• irregular
• inconstant
• unusual
• episodic
• unexpected
• episodical

3

as in steadfast

firm in one's allegiance to someone or something

constant friends during times both good and bad

Synonyms & Similar Words

• steadfast
• staunch
• loyal
• faithful
• true
• dedicated
• devoted
• good
• devout
• steady
• pious
• ardent
• fast
• stanch
• fervent
• down-the-line
• reliable
• passionate
• true-blue
• dependable
• responsible
• solid
• dutiful
• resolute
• trusty
• enthusiastic
• trustworthy
• unfaltering
• unwavering
• unhesitating
• serious
• tried
• determined
• intent
• inveterate
• avid
• tried-and-true
• impassioned
• confirmed
• fervid
• sworn
• gung ho
• dyed-in-the-wool

Antonyms & Near Antonyms

• false
• inconstant
• treacherous
• fickle
• perfidious
• unreliable
• untrue
• traitorous
• unfaithful
• faithless
• disloyal
• irresponsible
• untrustworthy
• undependable
• uncertain
• hesitant
• faltering
• dubious
• shaky
• recreant
• irresolute
• wavering
• dispassionate
• apathetic
• uninterested
• vacillating

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

Recent Examples of constant

In 1929, when astronomers discovered that the universe was actually expanding, Einstein dropped the constant. —Rebecca Boyle, Scientific American, 4 Oct. 2025

With a cool, constant temperature of 54 degrees, the caverns are a perfect year-round adventure. —Erin Gifford, Southern Living, 3 Oct. 2025

It’s marketed as a constant listener that sends you texts based on context about your life, but Friend could barely hear me. —Jordan Blum, Fortune, 3 Oct. 2025

Aside from his illustrious music career, 50 Cent is most known for his relentless trolling and constant encouragement of drama and chaos. —Regina Cho, VIBE.com, 3 Oct. 2025