Breathtaking can also be spelled breath-taking.
breathtaking
It is not hyphenated.
Her beauty was breathtaking.
Motorcycle is not hyphenated
No it's not hyphenated.
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
Yes it should be hyphenated.
No, "hardworking" is not hyphenated.
It can be. Some words can be seen both hyphenated and non-hyphenated.
A Breathtaking Guy was created in 1971.
Breathtaking isn't a noun at all; it's an adjective. Examples:This is a breathtaking view.His impertinence is breathaking.
No. Well above is not hyphenated.