WordWeb Online

1. Made dim or less bright
   "dimmed headlights"; "we like dimmed lights when we have dinner"; "the dimmed houselights brought a hush of anticipation";
   - dim

1. Become dim or lusterless
   "the lights dimmed and the curtain rose"
    
2. Make dim or lusterless
   "Time had dimmed the silver"
    
3. Make dim by comparison or conceal
   - blind
    
4. Switch (a car's headlights) from a higher to a lower beam
   - dip
    
5. Become vague or indistinct
   "The distinction between the two theories dimmed";
   - blur, slur

See also: low-beam

Type of: change, change intensity, darken, weaken

Encyclopedia: Dimmed