WordWeb Online

1. Completely neat and clean
   "the apartment was immaculate"; "in her immaculate white uniform";
   - speckless, spick-and-span, spic-and-span, spic, spick, spotless
    
2. Free from stain or blemish
   - undefiled, intemerate [rare]
    
3. Without fault or error
   "timing and technique were immaculate"; "an immaculate record";
   - faultless, impeccable, incorrupted

See also: clean, perfect, pure

Encyclopedia: Immaculate