Formal:
* Wunderbar (pronounced "voon-der-bar") - This is the most common and direct translation of "wonderful."
* Fantastisch (pronounced "fan-tas-tish") - This is another very common word for "wonderful" and is slightly more formal than "wunderbar."
Informal:
* Genial (pronounced "geh-knee-aal") - This word is more informal and has a slightly different nuance than "wunderbar" or "fantastisch." It can be used to express something as "great" or "awesome."
* Super (pronounced "zoo-per") - This is a very common and informal word for "wonderful" and is often used in everyday conversations.
* Toll (pronounced "tol") - This word is also informal and can be used to express something as "great" or "awesome."
Other options:
* Prächtig (pronounced "prek-tigh") - This word means "magnificent" or "splendid" and can be used to express something as particularly wonderful.
* Großartig (pronounced "grohs-ar-tigh") - This word means "grand" or "splendid" and is a more formal way to say "wonderful."
The best choice depends on the context and your desired level of formality.