A term referring to a person characterized as tough or unyielding, similar to flint stone's qualities.

कठिन या कठोर व्यक्ति

English Usage: "He was known as a flinthead in the factory, never backing down from a challenge."

Hindi Usage: "वह कारखाने में एक फ्लिंटहेड के रूप में जाना जाता था, कभी भी किसी चुनौती से पीछे नहीं हटता।"