Boring means dull, uninteresting, or tedious: it describes something that fails to hold your attention or spark your curiosity. A boring lecture drones on without anything engaging to think about. A boring book makes you check how many pages are left every few minutes. A boring afternoon stretches out endlessly with nothing fun or meaningful to do.

What makes something boring often depends on the person. One student might find a documentary about ancient Egypt boring, while another finds it fascinating. But some things are widely considered boring: listening to someone read a phone book aloud, watching paint dry, or sitting through a long speech filled with facts you already know.

People sometimes confuse boring with bored. The lecture is boring (it causes boredom), but you feel bored (you experience boredom). If you say “I'm boring,” you're claiming that you make others yawn, not that you're experiencing dullness yourself.

When you call something boring, you're usually saying it lacks variety, challenge, surprise, or connection to things you care about.