资料来源 : WordNet®

survivor guilt
     n : a deep feeling of guilt often experienced by those who have
         survived some catastrophe that took the lives of many
         others; derives in part from a feeling that they did not
         do enough to save the others who perished and in part
         from feelings of being unworthy relative to those who
         died; "survivor guilt was first noted in those who
         survived the Holocaust"