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.

In the face of such developments, it was the "steadfast stand" of the North to "further expand and strengthen the powerful and absolutely reliable deterrent for self-defence", Kim said.

From Barron's • Jun. 23, 2026

"The SDF should be able to carry out its mission with pride and honour, and Japan must possess defence capabilities that remain steadfast even in today's challenging security environment," he added.

From BBC • Jun. 17, 2026

Happy Birthday to the glorious, untidy, steadfast, magnificent experiment that is the United States.

From The Wall Street Journal • Jun. 7, 2026

Prime Minister Narendra Modi said India remains "steadfast as ever" in its determination to defeat terrorism and its "enabling ecosystem", marking one year since a deadly clash with arch-enemy Pakistan.

From Barron's • May 7, 2026

We are young, they sing, we are steadfast, we have never compromised, we have so many castles yet to storm.

From "All the Light We Cannot See" by Anthony Doerr

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