
wunderbar
wonderful
Extraordinarily good, beautiful, or pleasant; inspiring enthusiasm.
Wir hatten einen wunderbaren Urlaub am Meer.
We had a wonderful vacation by the sea.
wonderful
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wonderful
Extraordinarily good, beautiful, or pleasant; inspiring enthusiasm.
Wir hatten einen wunderbaren Urlaub am Meer.
We had a wonderful vacation by the sea.
The word is made up of 'das Wunder' (the miracle) and the suffix '-bar' (-able). So it describes something that is as beautiful or good as a miracle.
Die Aussicht von diesem Berg ist einfach wunderbar.
The view from this mountain is simply wonderful.
'Wunderbar' (wonderful) can not only describe a noun, but can also be used as an adverb to intensify a verb or another adjective. It then means something like 'very well' or 'excellent'.
Das Essen hat wunderbar geschmeckt.
The food tasted wonderful.
'Wunderbar' (wonderful) is often used to express positive experiences and feelings. Typical combinations are 'ein wunderbarer Tag' (a wonderful day), 'eine wunderbare Idee' (a wonderful idea), 'ein wunderbares Gefühl' (a wonderful feeling), or 'ein wunderbarer Mensch' (a wonderful person).
Das war eine wunderbare Überraschung, vielen Dank!
That was a wonderful surprise, thank you very much!
great / mad
Toll and wunderbar both express that something is particularly good or pleasing. Toll sounds much more colloquial and works well in a casual conversation. Wunderbar is less colloquial and can therefore also be used in a more neutral announcement.

In ihrer offiziellen Mitteilung nennt Anna das Ergebnis wunderbar.
In her official announcement, Anna calls the result wonderful.
Im Gespräch mit ihrer Freundin nennt Anna das Ergebnis toll.
In a conversation with her friend, Anna calls the result great.