endlessannoyance

2. A person or thing that keeps bothering someone without pause.

Her little brother was an endlessannoyance during the whole road trip.

3. A continuing state of mild anger caused by repeated small problems.

The endlessannoyance of slow internet made him give up on the video call.

4. A source of repeated trouble that feels impossible to escape.

For the villagers, the endlessannoyance was the flock of crows in the field.