1. [ adjective ] having lost or been caused to lose interest because of overexposure
Synonyms: benumbed

"the mind of the audience is becoming dulled" "the benumbed intellectual faculties can no longer respond"

Related terms: uninterested
2. [ adjective ] made dull or blunt
Synonyms: blunted
Related terms: dull
3. [ adjective ] (color) deprived of color
Synonyms: grayed

"colors dulled by too much sun" "grayed with the dust of the road"

Related terms: colorless
Similar spelling:   duluth