死死 Traditional form: 死死 Pinyin (reading): sǐsǐ Definitions: rigid unwavering unbendable firm (hold on sth) tenacious Characters: 死 - dead; death; impassable, inflexible 死 - dead; death; impassable, inflexible Traditional characters: 死 - dead; death; impassable, inflexible 死 - dead; death; impassable, inflexible