Definition of steadfast adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈstedfɑːst//
; NAmE NAmE//ˈstedfæst//
(literary, approving)
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not changing in your attitudes or aims synonym firm steadfast loyalty steadfast in something He remained steadfast in his determination to bring the killers to justice. Word OriginOld English stedefæst ‘standing firm’ (see stead and fast ‘firm’).
See the Oxford Advanced American Dictionary entry: steadfast