Simple past tense and past participle of bespatter.(verb)
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Use "bespattered" in a sentence
"He was disheveled, soused with water, bespattered with mud, his round face very pale, and he fixed a wild stare on the company …"
"This is the side of Emanuel that gets obscured by stories about obscenity-bespattered phone calls and gifts of dead fish."
"That night the water was steadily creeping higher and higher, while a civil engineer, mud-bespattered, with the red ribbon of the Legion of Honor in his button-hole, was standing on the corner of the sandbag bastion by the Pont de la Concorde and measuring its advance."