Was heißt »unüblich« auf Englisch?

Das Adjektiv »unüblich« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Deutsch/Englische Beispielübersetzungen

Trinkgeld ist hier eher unüblich.: Tipping is rather unusual here.
Es ist unüblich, dass du so etwas tust.: It's unusual for you to do something like that.
Es ist nicht unüblich.: It's not unusual.
Hier ein Beispiel für ein semantisches Spektrum: nicht existent, einzigartig, selten, unüblich, gewöhnlich, banal, abgedroschen, universell.: Here's an example of a semantic gamut: non-existent, unique, rare, uncommon, common, trite, worn-out, universal.

Tom has an unusual last name.
What I particularly like about this building is its unusual shape.
It's unusual for you to stay up so late! Has something happened?
It's not unusual for that to happen.
What persuaded you to accept this unusual challenge?
Because of the knight's unusual way of hopping around the board, beginners are often taken by surprise and find themselves the victims of a knight's fork.
You find a lot of unusual plants in a botanic garden.
Just as many students study while listening to music, it's not at all unusual for people working at home to switch on the telly or radio to keep themselves company.
I saw something very unusual on my way here.
I saw something very unusual.
Insects are nothing unusual during the summer months.
Tom has an unusual job.
It's nothing unusual for pupils to start revising for a test only the night before.
When did the unusual discharge begin?
The story has a very unusual beginning.
The story opens in a very unusual way.
The start of the story is very unusual.
There's nothing unusual about this.
Technically, you're right. However, you must also consider the unusual circumstances that pertain here.
John's manner was somewhat unusual.