See blear in Webster's New World Roget's A-Z Thesaurus II
verb
To make dim or indistinct:
becloud, bedim, befog, blur, cloud, dim, dull, eclipse, fog, gloom, mist, obfuscate, obscure, overcast, overshadow, shadow. See clear
adjective
Not clearly perceived or perceptible:
bleary, cloudy, dim, faint, foggy, fuzzy, hazy, indefinite, indistinct, misty, obscure, shadowy, unclear, undistinct, vague. See clear
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