不足为外人道

Explanation: Not with the people outside say. Are used for requirements related to people not to tell other people. 　　Usage: Complex sentence; as the predicate clause; described that is not worth of foreign 　　Source: Jin Tao Qian's "Peach Blossom Spring": "stop a few days, resigned. The human a saying: 'difficult for outsiders to have'." 　　Examples: These cases ~, naturally not allow them to meet with foreign guests, so that exposed his true features. (High-Yang "Well rouge") Thesaurus:  contemn, regard as worn-out shoes, slaughter people and treat human life as if it were not worth a straw, Killing harmless, hold power over sb.’ s life and death, Treat worthless, will not grudge, sneer disdain Antonym Group:  A thousand jin gold Spacious Broom, Daughter spacious broom, Feather care