hagiography
noun uk/ˌhæɡ.iˈɒɡ.rə.fi/ us/ˌhæɡ.iˈɑː.ɡrə.fi/
[ C or U ]理想化的传记，美化主人公的传记
a very admiring book about someone or a description of someone that represents the person as perfect or much better than they really are, or the activity of writing about someone in this way
[ U ] religion specialized圣徒传记
writings about the lives of holy people such as saints