annoying (adj)

It's really annoying when a train is late and there's no explanation.
He's got a really annoying laugh.
The constant buzzing of the mosquito in the room was incredibly annoying, making it impossible to fall asleep.
Her habit of interrupting others mid-sentence was quite annoying, and it made conversations difficult to follow.
The never-ending pop-up ads on the website were highly annoying, causing users to leave the site in frustration.