孽子 Traditional form: 孽子 Pinyin (reading): nièzǐ Definitions: unfilial son unworthy son illegitimate son concubine's son Characters: 孽 - bastard child; the consequence of a sin; evil 子 - son, child; seed, egg; fruit; small thing Traditional characters: 孽 - bastard child; the consequence of a sin; evil 子 - son, child; seed, egg; fruit; small thing