己jǐself; oneself; sixth of the ten Heavenly Stems 十天干[shi2 tian1 gan1]; sixth in order; letter "F" or Roman "VI" in list "A, B, C", or "I, II, III" etc; hexa
身不由己shēn bù yóu jǐ(idiom) (of one's circumstances) beyond one's control; unable to do anything about it; (of one's actions) not subject to conscious control (i.e. done in spite of oneself)