bravado

/brəˈvɑːdoʊ/

bra·vado

BrE /brəˈvɑːdəʊ/

NAmE /brəˈvɑːdoʊ/

[U]

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