隔世の感

Meaning

1. expn
   feeling that one is living in a completely different age; feeling that something belongs to a different age; feeling that the world has changed dramatically

Example sentences

• この点に関しては、私が英語学習を志した２０数年前とは隔世の感があります。

  On this point it is poles apart from when I set myself on learning English 20 years ago.