I want it to be formal, but not boring to look at.

我想要考虑是正式的，但不是令人厌烦的。

youdao

Life in the lane is busy but not chaotic, lively but not noisy, plain but not boring.

巷陌中的这一切，忙碌却不混乱，活泼却不嘈杂，平淡却不厌烦。

youdao

Everything happening in the lane is busy but not chaotic, vivacious but not noisy, plain but not boring.

巷陌中的这一切，忙碌却不混乱，活泼却不嘈杂，平淡却不厌烦。

youdao

Dr. Danckert first tried a YouTube video of a man mowing a lawn, but subjects found it funny, not boring.

WSJ: Interesting Fact: There's a Yawning Need for Boring Professors

But a McCain presidency would certainly not be boring.

ECONOMIST: The candidates: John McCain

But if you are not careful, it can be boring and unexpressive.

FORBES: Windows 8 Killed The Start Menu, But A Startup Named Pokki Brought It Back