Blimp and Diehard

Blimp noun - Any elderly pompous reactionary ultranationalistic person (after the cartoon character created by Sir David Low).

Diehard and blimp are semantically related in conservative topic. In some cases you can use "Diehard" instead a noun "Blimp".

Diehard noun - One who adheres to traditional views.

Blimp and diehard are semantically related in conservative topic. You can use "Blimp" instead a noun "Diehard", if it concerns topics such as stick-in-the-mud. informal substitute