"Nonetheless" means "in spite of what has just been said" or "nevertheless". It is used to introduce a statement that contrasts with a previous statement, suggesting that the latter statement is still true despite the former.
Here are some examples:
- The movie was long, but nonetheless entertaining. (Despite being long, it was still entertaining.)
- I was tired, but I went to the party nonetheless. (Even though I was tired, I still went to the party.)
- The weather was bad, nonetheless we decided to go on a hike. (Even though the weather was bad, we still decided to go on a hike.)
The word "nonetheless" is often used interchangeably with "nevertheless" and "however." However, it is more formal and literary in tone than the other two words.