hard-boiled

Short definition from Wiktionary

Adjective

1. 1
   Cooked to a solid consistency. (of a boiled egg)
2. 2
   Callous and unsentimental. (of a person, especially a detective)
3. 3
   Written in a laconic, dispassionate, often ironic style for a realistic, unsentimental effect.

Verb

1. 1
   simple past and past participle of hard-boil