mauvaise foiyoudaoicibaDictYouDict[mauvaise foi 词源字典]
"In the existentialist philosophy of Sartre: the self-deception practised by a person who wishes to avoid absolute responsibility for his or her own actions by not recognizing that human beings have free will and that no relationship is genuinely mutual. Also (in extended use): bad faith, disingenuousness", 1940s. From French mauvaise foi, lit. ‘bad faith’ from mauvaise, feminine of mauvais bad + foi faith.[mauvaise foi etymology, mauvaise foi origin, 英语词源]