hard-boiled /ˈhɑɚdˈbojəld/ adjective Learner's definition of HARD-BOILED
1
of an egg : boiled until all the inside parts have become solid(蛋)煮老了的 — compare soft-boiled 2
a [more hard-boiled; most hard-boiled] : not feeling or showing emotions such as affection or kindness : emotionally tough不为情所动的;铁石心肠的 b chiefly US : having a tough detective as the main character以硬汉派侦探为主角的