D defs.my
Entry 1 sense Webster, 1913

Dullness

· Dull·ness · IPA /ˈdʌl.nəs/
01 n. The state of being dull; slowness; stupidity; heaviness; drowsiness; bluntness; obtuseness; dimness; want of luster; want of vividness, or …
  1. 1.
    The state of being dull; slowness; stupidity; heaviness; drowsiness; bluntness; obtuseness; dimness; want of luster; want of vividness, or of brightness.
    “And gentle dullness ever loves a joke.” Pope.