What does the word dull mean?

Usage examples for dull

  1. Oh, Irene, I hope you haven't been dull. – Anxious Audrey by Mabel Quiller-Couch
  2. " Not all of it," she replied, " I found it rather dull." – City of Endless Night by Milo Hastings
  3. Sophia saw that this was one of his bad, dull days. – The Old Wives' Tale by Arnold Bennett