aforementioned UK /əˈfɔːˌmɛn.ʃənd/US /əˈfɔɹˌmɛn.ʃənd/adjective 1noun 1 adjective1 •Previously mentioned.It wasn't until later that we realized that the aforementioned caller and this taciturn man were the same person. noun1 •The one or ones mentioned previously.The judge read a list of prisoners' names. She then indicated that the aforementioned were to be set free.