The phrasal verb 'border on' is primarily used in informal and semi-formal contexts, though it can appear in formal speech, particularly in descriptive or analytical discourse. It is commonly used to indicate that something is very close to or almost at the point of transitioning into something else, often suggesting a fine line between two conditions or qualities. For example, one might say "Her impatience bordered on rudeness," indicating that her impatience was nearly perceived as rude behavior. This phrasal verb can describe tangible boundaries, such as geographical areas, and abstract concepts, such as emotions or actions. Its usage is versatile, allowing speakers to convey nuance when describing situations that are on the verge of changing character or nature.
B2
UpperIntermediate
1. To be very close to being or resembling something.
Her happiness bordered on giddiness when she heard the news.
The painting's abstract style bordered on chaos, yet it was captivating.
His speech bordered on the risqué, causing some attendees to feel uncomfortable.