ˌhard-ˈboiled BrE AmE adjective
1 . a hard-boiled egg has been boiled until it becomes solid ⇨ ↑ soft-boiled
2 . informal
a) not showing your emotions and not influenced by your feelings SYN tough :
a hard-boiled marketing executive
b) hard-boiled film/thriller/fiction etc a film etc that deals with people who do not show their emotions