dullness
noun
[ ˈdʌlnəs ]
• lack of interest or excitement.
• "tasks of such repetitive and numbing dullness"
• lack of brightness, vividness, or sheen.
• "flowery options to brighten up the dullness of autumn"
• the quality of being slow to understand; stupidity.
• "critical comments on the stupidity or dullness of those in authority"
