naturalistic fallacy definition
In philosophical ethics, the term  naturalistic fallacy  was introduced by British philosopher G. E. Moore in his 1903 book Principia Ethica. Moore argues it would be fallacious to explain that which is good reductively in terms of natural properties such as pleasant or desirable.he naturalistic fallacy is the assumption that because the words 'good' and, say, 'pleasant' necessarily describe the same objects, they must attribute the same quality to them. ââ¯Arthur N. Prior, Logic And The Basis Of Ethics.