unprogressive

adj

1. Not progressive; not contributing to progress.

   “Introducing a comprehensive re-design scheme for the Canadian National Railways earlier this year, the Director of Public Relations, Mr. C. A. Harris, said a 1959 survey by his department had revealed that the railways were felt by the public to be unprogressive and slow to improve performance and service; the existing modernisation scheme had, he said, been lying like an iceberg, mostly beneath the surface.”

noun

1. A person whose views are not progressive.

   “[…] the unprogressives, the reactionaries, the unenlightened, who refuse to bow down to the god, Art.”