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.

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

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

From Slate • Mar. 25, 2026

The island is experiencing its worst days since the 1991 fall of the Soviet Union, Havana’s steadfast patron.

From Los Angeles Times • Mar. 16, 2026

Brook was also steadfast in his defence of McCullum on Thursday night, saying the former New Zealand captain was "125%" the man to continue.

From BBC • Mar. 5, 2026

She drew strength from the older man’s steadfast support and intellectual nourishment from his commanding intelligence, which grappled with a wide range of issues, from anticolonial movements in Africa to presidential politics here at home.

From "The Best of Enemies" by Osha Gray Davidson

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