自相矛盾 | zì xiāng máo dùn | to contradict oneself / self-contradictory / inconsistent | |
出尔反尔 | chū ěr fǎn ěr | old: to reap the consequences of one's words (idiom, from Mencius) / modern: to go back on one's word / to blow hot and cold / to contradict oneself / inconsistent |