More informal:
* Gorgeous: This is a very common and versatile term used for both people and things.
* Deadly: This is a slang term meaning "great" or "excellent" and can be used to describe something beautiful, particularly if it's trendy or stylish.
* Bould: This is a more old-fashioned term meaning "big" or "fine" and can be used to describe something physically beautiful.
* Stunning: This is a more formal term, but it can also be used in informal contexts.
* Foxy: This is a slang term used to describe someone attractive, particularly someone with a "fox-like" charm.
More formal:
* Lovely: This is a very common and versatile term used to describe something pleasing to the eye.
* Beautiful: This is the most formal and direct term, used for both people and things.
Other options:
* Cracking: This is a slang term meaning "great" or "excellent" and can be used to describe something beautiful.
* Sound: This is another slang term meaning "good" or "nice" and can be used to describe something beautiful.
It's worth noting that some of these terms might have slightly different meanings depending on the region of Ireland.
Ultimately, the best way to choose the right term is to consider the context and the desired level of formality.