WordWeb Online

1. Horrible in fierceness or savagery
   "lurid crimes"; "a lurid life"
    
2. Glaringly vivid and graphic; marked by sensationalism
   "lurid details of the accident"
   - shocking
    
3. Shining with an unnatural red glow as of fire seen through smoke
   "a lurid sunset"; "lurid flames"
    
4. Ghastly pale
   "moonlight gave the statue a lurid luminance"

See also: bright, colorless [US], colourless [Brit, Cdn], luridly, luridness, sensational, violent