1. (

• dullness ,
• obtuseness ,

) the quality of being slow to understand ;

2. (

• dullness ,

) the quality of lacking interestingness; "the stories were of a dullness to bring a buffalo to its knees" ;

3. (

• dullness ,

) a lack of visual brightness; "the brightness of the orange sky was reflected in the dullness of the orange sea" ;

4. (

• dullness

) lack of sensibility; "there was a dullness in his heart"; "without him the dullness of her life crept into her work no matter how she tried to compartmentalize it." ;

5. (

• dullness ,
• bluntness ,

) without sharpness or clearness of edge or point; "the dullness of the pencil made his writing illegible" ;