Formal:
* 极好 (jí hǎo) - This is the most formal and literal translation of "excellent".
* 优异 (yōu yì) - Means "outstanding" or "excellent" and is commonly used in academic or professional settings.
* 杰出 (jié chū) - This means "outstanding" or "eminent" and implies a high level of achievement.
Informal:
* 很棒 (hěn bàng) - This is a very common and casual way to say "excellent" or "awesome".
* 太棒了 (tài bàng le) - Similar to "hěn bàng", but with a bit more enthusiasm and excitement.
* 好极了 (hǎo jí le) - This is another way to say "excellent" in a more informal and expressive way.
Other options:
* 完美 (wán měi) - This literally means "perfect" and can be used to express "excellent" in some contexts.
* 一流 (yī liú) - This means "first-class" or "top-notch" and is a more specific way to say "excellent".
The best option for you will depend on the situation and the level of formality you want to convey.