1. the quality or state of being easily annoyed or impatient; irritability

Examples

• His testiness increased as the meeting dragged on.
• The coach’s testiness was evident when players made mistakes.
• She apologized for her testiness, blaming it on lack of sleep.
• The customer’s testiness made the situation more difficult.
• His usual testiness disappeared when he saw his grandchildren.
• The heat seemed to bring out everyone’s testiness.