Simple past tense and past participle of disagree.(verb)
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Use "disagreed" in a sentence
"Echoing recent comments by Palin, Matalin disagreed and said she thought the Newsweek cover was sexist."
"Perfect example is the GI bill that McCain disagreed with."
"And on Thursday Maslin disagreed with Schillinger's rave from last Sunday for Charles Bock's Beautiful Children: Beyond knowing that his characters are en route to trouble, Mr. Bock has few clear destinations in mind for any of them."