verisimilitude       
noun [ U ]  formal uk/ˌver.ɪ.sɪˈmɪl.ɪ.tʃuːd/ us/ˌver.ə.səˈmɪl.ə.tuːd/
 貌似真实;逼真
the quality of seeming true or of having the appearance of being real
  She has included photographs in the book to lend verisimilitude to the story. 她在书中使用了照片,以使故事显得更加真实。