Simple past tense and past participle of unfold.(verb)
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Use "unfolded" in a sentence
"I have followed this story as it unfolded from the beginning."
"Second, the way events unfolded is unlikely; but then unlikely things can and do happen sometimes."
"I am inclined to agree with Sanders that the Federal Reserve showed poor leadership as the economic mess we're in unfolded, But I think Greenspan is much more to blame for the whole mess than Bernanke."