dulled
adjective
1. having lost or been caused to lose interest because of overexposure
- the mind of the audience is becoming dulled
Similar word(s): uninterested, benumbed
2. made dull or blunt
Similar word(s): dull, blunted
3. deprived of color
- colors dulled by too much sun
Similar word(s): colorless, colourless, greyed
verb
1. simple past tense and past participle of dull