A minor annoyance is an irritating or bothersome experience that is relatively insignificant. The term can be broken down into three words: NIGGLE (6 letters), PEEVE (5 letters), and pinprick (8 letters). NIGGLE refers to a small complaint or criticism, while a PEEVE is an annoyance or grievance that is often repeated. Pinprick is a metaphor for a very small or insignificant problem. All three words can be used to describe a minor annoyance.