obdurate

adj.冷酷无情的,顽固的,执拗的

顽固的；固执的；坚决不听劝告的

形容词

1、He remained obdurate despite all attempts to convince him otherwise.
尽管有种种努力想说服他，他仍然固执地不听。
2、The negotiations broke down because both sides were obdurate in their demands.
因为双方都在坚持自己的要求，所以谈判破裂了。