hard-bitten

1. ADJ If you describe someone as hard-bitten, you are critical of them because they do not show much emotion or have much sympathy for other people, usually because they have experienced many unpleasant things. (常指因经历过很多艰苦而)铁石心肠的; 麻木不仁的[usu ADJ n] [表不满]

...a cynical hard-bitten journalist. ...一位愤世嫉俗、麻木不仁的记者。