刚 ㄍㄤ gāng 愎 ㄅㄧ ˋ bì 自 ㄗ ˋ zì 用 ㄩㄥ ˋ yòng 剛 ㄍㄤ gāng 愎 ㄅㄧ ˋ bì 自 ㄗ ˋ zì 用 ㄩㄥ ˋ yòng obstinate and self-opinionated (idiom)