Uninteresting
Part of speech: adjective
Definition: Arousing little or no interest; boring or uneventful.
Example sentence: Generally, writers have very uninteresting lives.
Boring
Part of speech: verb
Definition: To inspire boredom in somebody.
Part of speech: adjective
Definition: That which incites boredom in a person.
Example sentence: We are all ordinary. We are all boring. We are all spectacular. We are all shy. We are all bold. We are all heroes. We are all helpless. It just depends on the day.