petty

The word carries a strong negative charge when applied to human behavior. While it can mean "small" in a literal or administrative sense, its most common usage describes a spirit of narrow-mindedness. When describing people, it suggests a lack of generosity or maturity. It is not just about focusing on small things, but doing so specifically to annoy, punish, or spite someone else over something that doesn't actually matter. In administrative contexts (like "petty cash" or "petty officer"), the word is neutral and simply denotes a lower rank or smaller amount. However, in social contexts, calling someone "petty" is an insult implying they are obsessed with insignificant grievances.