Negative Space Definition
Negative Space in terms of UX design — also being called white space — it’s empty space left between objects that is defined as a blank space you leave deliberately. It also stands for necessary area that is leaved blank so that users can concentrate on the most essential parts of your design. Commonly you can implement this technique when designing logos but also creating illustrations for blog articles.
Talking in terms of UI and UX design we can say that blank space or negative space mostly impacts usability and stands for clear navigation as well. Why is it essential for designers? — since people can focus only on various key elements you have to think over what you would like to highlight, ask yourself if the users will be able to find what they are looking for in your overflowed design.