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

Buffett has always remained steadfast in his belief in the American capitalist system. —Josh Funk, Los Angeles Times, 2 Jan. 2026

Buffett has always remained steadfast in his belief in the American capitalist system. —Josh Funk, Fortune, 31 Dec. 2025

Pezeshkian said that despite sanctions and foreign pressure, Iran remains steadfast and capable of defending its national interests. —David Brennan, ABC News, 29 Dec. 2025

While fillings and flavors vary, the tri-colored topping and tiny plastic baby remain steadfast. —Kaitlyn Yarborough, Southern Living, 28 Dec. 2025

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