English

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

 

valiant

 adjective
adjective
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 Origin Middle 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