preserved in aspic

Adjective

 * 1)  Unchanged, especially if contrary to expectation.
 * 2) * Johnston, G., Robertson, E. (2019). BBC World Service: Overseas Broadcasting, 1932–2018. Germany: Palgrave Macmillan UK. p.285
 * He described the service as ‘preserved in aspic, speaking with the plummy tones of a Britain that scarcely existed any longer’.
 * He described the service as ‘preserved in aspic, speaking with the plummy tones of a Britain that scarcely existed any longer’.