Awkwardness is discomfort in a situation nobody knows how to handle. An awkwardness in the room, social awkwardness, break the awkwardness.
It is about the situation as much as any person, which is why it can settle on a whole room at once. English is unusually rich in words for it, and the pause after somebody says the wrong thing is the classic case.
1nounawkwardnessDiscomfort in a situation nobody knows how to handle.
“There was a moment of awkwardness when she realised she'd forgotten his name.”
awkwardness is a discomfort.
From awkward + -ness.
Etymology from Wiktionary, CC BY-SA