1. a person who complains frequently or habitually
Usage: informal

Examples

• He's such a griper—he complains about everything at work.
• Don't be a griper; try to focus on the positive aspects of the project.
• The team had a few gripers who were unhappy with the new schedule.
• She's known as the office griper because she's always finding something to complain about.
• Even though the food was good, the griper at the table still found fault with it.