Simple past tense and past participle of retreat.(verb)
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Use "retreated" in a sentence
"Ehrlich, who eight years ago turned to Prince George's for an African American running mate - Michael S. Steele, now chairman of the Republican National Committee - has largely retreated from the vote-rich county, focusing his campaign elsewhere."
"While Contador seems to have retreated from the public eye after traces of clenbuterol were found in his system during a control at the 2010 Tour, he sticks to his daily routine in Pinto."
"With Nortel and Alcatel-Lucent (a ALU) having retreated from the WiMAX market, one wonders: Who is going to win [...]"