Definitions of dullness

  1. without sharpness of edge or point Scrapingweb Dictionary DB
  2. the quality of being slow to understand Scrapingweb Dictionary DB
  3. a lack of visual brightness Scrapingweb Dictionary DB
  4. the quality of lacking interestingness Scrapingweb Dictionary DB
  5. The state of being dull; slowness; stupidity; heaviness; drowsiness; bluntness; obtuseness; dimness; want of luster; want of vividness, or of brightness. Webster Dictionary DB
  6. The state of being dull; a percussion note, high-pitched and with diminished resonance Appleton's medical dictionary.

What are the misspellings for dullness?