Simple past tense and past participle of fool. (verb)
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Use "fooled" in a sentence
"The Clinton name, the predictions from her camp, the phony gas tax holiday and a lot of help from the media couldn't fool the voters so the only one being fooled is Clinton herself."
"The reason are so easily fooled is we have gone 30 so odd years without a prolonged military conflict. this whole thing has been orchrastrated by a public relations firm in D.C. that is paid by the R.N.C.."
"And, perhaps, most importantly, he seems to have Saddam Hussein fooled into thinking that there is nothing he can do to prevent a U.S. attack."