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



BrE BrE//ˈvæliənt//
; NAmE NAmE//ˈvæliənt//
(especially literary) Brave
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very brave or determined synonym courageous valiant warriors She made a valiant attempt not to laugh. The firefighters made valiant efforts to save them, but were beaten back by the flames. See related entries: Brave Word OriginMiddle English (also in the sense ‘robust, well-built’): from Old French vailant, based on Latin valere ‘be strong’.
See the Oxford Advanced American Dictionary entry: valiant