Other forms: edgier; edgily; edgiest
If you're edgy, you're uptight, tense, or anxious. You might find yourself getting nervous and edgy right before you take a difficult test.
A tendency to get edgy — irritable and jittery — might be a result of too much coffee, or just a personality trait. It's not a very helpful habit in most cases, leading you to snap at other people or just feel tense. An informal way to use edgy is to mean "experimental or daring." In the 18th century, something edgy literally had sharp edges, but by the early 1800s it came to mean "tense and irritable."