loud mouth
4.Again, think of that self-opinionated, cantankerous loud-mouth; he/she should learn good manners, and the group must learn to enforce these manners without destructive confrontation.
5.If you think this is a nebulous concept when applied to the world of industry, consider the opposite effect that a self-opinionated, cantankerous loud-mouth would have on your performance and then contrast that to working with a friendly, open, helpful associate.
