Definition of bravado noun from the Oxford Advanced Learner's Dictionary

 

bravado

 noun
noun
BrE BrE//brəˈvɑːdəʊ//
 
; NAmE NAmE//brəˈvɑːdoʊ//
 
[uncountable]
 
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a confident way of behaving that is intended to impress people, sometimes as a way of hiding a lack of confidence an act of sheer bravado ‘Don’t threaten me,’ she whispered with false bravado. He behaved aggressively out of bravado. Word Origin late 16th cent.: from Spanish bravada, from bravo ‘bold’ (from brave and -ado).
See the Oxford Advanced American Dictionary entry: bravado