Definitions

steadfast

[sted-fast, -fahst, -fuhst] / ˈstɛdˌfæst, -ˌfɑst, -fəst /

ADJECTIVE

loyal, steady

Synonyms

STRONGEST

abiding adamant ardent dedicated faithful inflexible intense relentless resolute rigid single-minded staunch stubborn true unflinching unqualified unswerving unwavering unyielding

WEAK

allegiant bound changeless constant dependable enduring established fast firm fixed immobile immovable inexorable intent liege never-failing obdurate persevering reliable stable sure tried-and-true true-blue unbending unfaltering unmovable unquestioning wholehearted

Antonyms

STRONGEST

afraid dishonest disloyal false flexible irresolute pliable pliant soft unreliable wavering weak willing yielding

WEAK

untrustworthy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"We are steadfast in our commitment to stand with survivors of gender-based and conflict-related violence, and carrying on the legacy of the grandmothers," the group wrote in a Facebook post on Tuesday.

From BBC • Apr. 28, 2026

Corporate America remains steadfast in the belief that companies who don’t fully learn to leverage AI will get outcompeted and become obsolete.

From The Wall Street Journal • Apr. 14, 2026

“The loyalty, the steadfast spirit, the character that they’ve chosen day in and day out. ... I am just so humbled that they’ve chosen to commit to our mission.”

From Los Angeles Times • Apr. 5, 2026

He was steadfast that all he was doing was helping, that the objections were cosmetic, and overblown.

From Slate • Mar. 25, 2026

“Your father wants me to be his Champion? What—don’t tell me that he’s managed to eliminate every noble soul out there! Surely there’s one chivalrous knight, one lord of steadfast heart and courage.”

From "Throne of Glass" by Sarah J. Maas

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