solipsism

sol·ip·sism| ˈsäləpˌsiz(ə)m | noun1 the quality of being very self-centered or selfish: she herself elicits scant sympathy, such is her solipsism and lack of self-awareness | in the solipsism of grief, it was as if the stars had aligned to mark my loss. 2 Philosophy the view or theory that the self is all that can be known to exist: solipsism is an idealist thesis because ‘Only my mind exists’ entails ‘Only minds exist’. ORIGIN mid 19th century: from modern Latin solipsismus, from Latin solus ‘alone’ + ipse ‘self’ + -ism. Both senses are first taken from uses by German philosophers.