unoriginal

/ʌnəˈrɪdʒənəl/
adjective
  1. Not new or fresh; copied from something else; lacking creativity or novelty.
    • His speech was unoriginal, repeating the same ideas everyone had already heard.
    • The movie's plot was unoriginal and felt like a copy of many earlier films.
    • The artist's latest work was criticized as unoriginal and derivative.