ATHEIST. The "fool who saith in his heart, There is no God." Ps liii. The atheist  differs entirely from the sceptic  and agnostic (which see). In "A plea for Atheism," the writer says: "If the word 'God' is defined to mean an existence other than that existence of which I am a mode, then I deny 'God,' and affirm that it is impossible that 'God' can be." The Psalmist's definition is the clearer.