1. people who complain in an annoying way, especially about unimportant things
Usage: informal; often disapproving

Examples

• The coach told the team to stop being whiners and focus on improving their game.
• Nobody likes whiners who constantly complain about everything.
• She called them whiners for complaining about the minor schedule change.
• The manager had no patience for whiners who wouldn’t accept constructive feedback.
• Don’t be one of those whiners who ruins everyone’s mood.
• The group was full of whiners who found fault with every decision.