The Oxford Thesaurus An A-Z Dictionary of Synonyms - blurn.

1) indistinctness, dimness, haziness, cloudiness, fogginess: We were unable to pick out the star from the blur of the Galaxy. 2 fog, haze, Brit fuzz: Without my spectacles, everything is a blur. --v. 3) dim, befog, obscure, bedim; efface: My vision was momentarily blurred, and I didn't see the oncoming car. 4) obscure, hide, conceal, veil, mask; weaken: The Honourable Gentleman has blurred the distinction between the unemployed and the unemployable.