A jobsworth is a person who uses the (typically small) authority of their job in a deliberately uncooperative way, or who seemingly delights in acting in an obstructive or unhelpful manner. It characterises one who upholds petty rules even at the expense of effectiveness or efficiency. Related concepts include malicious compliance, passive-aggressive behavior, and micromanagement, which can impair progress through excessive focus on details and obsessive control over those one has authority over.