不死心 Traditional form: 不死心 Pinyin (reading): bùsǐxīn Definitions: unwilling to give up unresigned Characters: 不 - no, not, un-; negative prefix 死 - dead; death; impassable, inflexible 心 - heart; mind; soul Traditional characters: 不 - no, not, un-; negative prefix 死 - dead; death; impassable, inflexible 心 - heart; mind; soul