However, nevertheless, and nonetheless are all good words for writing or speaking. ----- Nevertheless and nonetheless are equivalent and interchangeable. They mean "in spite of what has just been said". He's my dad and I love and respect him. Nonetheless, I'm going to do what I think is right for me. I know I am the underdog and am expected to lose. Nevertheless, I'm going to go for it! ----- "However" has a slightly different meaning than the other two. It means "on the other hand" or is used when you are "saying something that is different from or contrasts with a previous statement". We work together eight hours a day. However, that doesn't mean I like him. That car is really luxurious and prestigious. However, it's too expensive for my budget.

I do. When I use it, it is a stronger word than the others. It means "in spite of all of these many things." Here's an example of the way in which I would use it. However, I might be old-fashioned. Broccoli is healthy, but I don't like it. Broccoli is low in calories, rich in fiber, lowers cholesterol, has been clinically shown to reduce colon cancer. Fresh broccoli is available at our supermarket all year round, and it's cheap. Nevertheless, I don't like it.

Few people use never/nonetheless in conversation. People use but all the time, and sometimes yet, whereas, although, though. It sometimes depends what you are talking about.

I don't use "nevertheless" or "nonetheless" in daily conversation, but I would use them in writing. People I know usually just use "but" in conversations, although they might use "however" for more emphasis.