Synonyms of steadfast

steadfast

adjective

ˈsted-ˌfast 

as in loyal

firm in one's allegiance to someone or something

a steadfast supporter of women's rights

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

Synonym Chooser

How is the word steadfast distinct from other similar adjectives?

Some common synonyms of steadfast are constant, faithful, loyal, resolute, and staunch. While all these words mean "firm in adherence to whatever one owes allegiance," steadfast implies a steady and unwavering course in love, allegiance, or conviction.

steadfast in their support

When is it sensible to use constant instead of steadfast?

The synonyms constant and steadfast are sometimes interchangeable, but constant stresses continuing firmness of emotional attachment without necessarily implying strict obedience to promises or vows.

constant friends

In what contexts can faithful take the place of steadfast?

The words faithful and steadfast are synonyms, but do differ in nuance. Specifically, 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 could loyal be used to replace steadfast?

While in some cases nearly identical to steadfast, loyal implies a firm resistance to any temptation to desert or betray.

remained loyal to the czar

When is resolute a more appropriate choice than steadfast?

The meanings of resolute and steadfast largely overlap; however, resolute implies firm determination to adhere to a cause or purpose.

a resolute ally

When might staunch be a better fit than steadfast?

While the synonyms staunch and steadfast are close in meaning, staunch suggests fortitude and resolution in adherence and imperviousness to influences that would weaken it.

a staunch defender of free speech

Example Sentences

Recent Examples of steadfast

During his Senate tenure, Mullin has been a steadfast Trump ally and a top communicator for the Republican caucus. —Dan Mangan,garrett Downs, CNBC, 5 Mar. 2026

Bhattacharya himself remains steadfast in his pandemic-era views. —Katherine J. Wu, The Atlantic, 5 Mar. 2026

The reality is that getting a look—any look, be that a custom dress or a runway outfit—on a celebrity is a journey that involves a relentless stylist, a willing designer, an effective publicist, and an army of steadfast assistants. —José Criales-Unzueta, Vanity Fair, 4 Mar. 2026

Across two decades of steadfast commitment to serving filmmakers from the host country and the wider region, the Thessaloniki Intl. —Christopher Vourlias, Variety, 4 Mar. 2026

Podcast

Get Word of the Day delivered to your inbox!