Nervy/ˈnɜːrvi/ Definition 1 of 3Pro Tip 1/3Positive Action Describes a courageous act, often against adversity or pressure. Taking the penalty was a nervy decision. Pro Tip 2/3Confident Attitude Implies a display of confidence, sometimes more than what is typical. His nervy reply caught everyone off guard. Pro Tip 3/3Impressive Risk Often used when someone takes a calculated risk that is admired. Her nervy investment paid off handsomely.