Translation of unimportant in German

He also told me that he had build his scooter by himself. I could not understand how a doctor was able to build such a machine on his own. It seems that the circumstances made people capable of many things.
I just came back from Switzerland. Please give me a week to read the material you sent me. How was your time in Switzerland? Rani already asked me yesterday. Tell me when and where. I'll keep Tuesday free.
On the next day we took the tour to see the Peninsula. The tour itself was very boring and the guide had really not much to say that would interest me. The area was barren and completely flat.