STEADFAST Synonyms: 69 Similar and Opposite Words

Q: 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

Q: 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

Q: 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

Q: 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

Q: 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

Q: 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

steadfast

adjective

ˈsted-ˌfast

Definition of steadfast next

as in loyal

firm in one's allegiance to someone or something a steadfast supporter of women's rights

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

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

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 steadfast But certainly nothing may have damaged their trust more than the steadfast assertions that the COVID vaccines were able to stop infection and transmission. —

Ian Miller Outkick, FOXNews.com, 27 Apr. 2026 Their families both have expressed steadfast support of Broadnax's execution. —

Amanda Lee Myers, USA Today, 25 Apr. 2026 His campaign is gaining momentum at a time when many of the administration’s steadfast Christian backers—alarmed by the president’s bullying campaign against Pope Leo XIV in recent weeks, among other heresies—have been rethinking their support. —

Elizabeth Bruenig, The Atlantic, 24 Apr. 2026 Representative Cunningham is equally steadfast in her belief that parents hold the sacred right to guide their children through life; shaping their values, protecting their well-being, and navigating their futures without government overreach. —

Mary Ramsey, Charlotte Observer, 24 Apr. 2026 See All Example Sentences for steadfast

Recent Examples of Synonyms for steadfast

Adjective

My father’s clients were loyal and had become close friends over the years, but my mother knew little about the technical side of accounting or tax preparation.

— Voice of the People, New York Daily News, 10 May 2026
For existing and loyal customers, familiarity builds confidence.

— Shep Hyken, Forbes.com, 10 May 2026