undecadent

adjective

un·​dec·​a·​dent ˌən-ˈde-kə-dənt 

 also  -di-ˈkā-

: not decadent

… despite all the social-critic jeremiads, Americans have shown this remarkable tendency to remain undecadent.

—David Brooks

Word History

First Known Use

1898, in the meaning defined above