|1.||[ adjective ] having lost or been caused to lose interest because of overexposure|
"the mind of the audience is becoming dulled" "the benumbed intellectual faculties can no longer respond"
|2.||[ adjective ] made dull or blunt|
|3.||[ adjective ] (color) deprived of color|
"colors dulled by too much sun" "grayed with the dust of the road"