1. A hazy or indistinct representation
   "it happened so fast it was just a blur";
   - fuzz

1. Make unclear, indistinct, or blurred
   "Her remarks blurred the debate";
   - confuse, obscure, obnubilate
    
2. Make dim or indistinct
   "The fog blurs my vision";
   - blear [archaic]
    
3. Become vague or indistinct
   "The distinction between the two theories blurred";
   - dim, slur
    
4. Become glassy; lose clear vision
   "Her eyes blurred from lack of sleep";
   - film over, glaze over
    
5. Make a smudge on; soil by smudging
   "He blurred the document with his dirty fingers";
   - smear, smudge, smutch

Derived forms: blurring, blurred, blurs

See also: glaze

Type of: alter, change, internal representation, mental representation, modify, representation, rub, vary, weaken

Antonym: focalise [Brit]

Encyclopedia: Blur