unbluffed
/ʌnˈblʌft/Definitions
1. adjective
not deceived or intimidated; having a firm confidence or courage
“The unbluffed investor made a shrewd decision to sell the stocks.”
2. noun
a person who is not deceived or intimidated; an unimpressed or unafraid person
“The unbluffed look on her face showed that she was not easily intimidated.”