disquiet
A lingering feeling of worry that something is not right.
Disquiet is a feeling of worry or uneasiness that won't quite leave you alone. It's subtler than panic or fear: more like a persistent nagging sensation that something isn't right.
When you walk into your classroom and notice your friends whispering and glancing your way, you might feel a sense of disquiet. The feeling sits in your stomach, making you wonder what's happening even though nothing has been said directly. A creaking sound in an old house at night can create disquiet, that unsettled feeling where you're not exactly scared but definitely not comfortable either.
The word often describes a mood that spreads through a group. Political unrest might cause disquiet among citizens. Strange rumors at school can create disquiet among students. Scientists might express disquiet about changes they're observing in the environment.
Disquiet can also be a verb, meaning to make someone feel uneasy or worried. It captures that in-between state: you're not alarmed enough to take action, but you're troubled enough that you can't completely relax. It's the mental equivalent of an itch you can't quite scratch, a vague but persistent sense that something deserves your attention or concern.