牛脾气 Traditional form: 牛脾氣 Pinyin (reading): niúpíqi Definitions: bullheadedness stubborn Characters: 牛 - ox, cow, bull 脾 - spleen, pancreas; temper, disposition 气 - air, gas; steam, vapor; anger Traditional characters: 牛 - ox, cow, bull 脾 - spleen, pancreas; temper, disposition 氣 - air, gas; steam, vapor; anger