unfold UK /ʌnˈfəʊld/US /ʌnˈfoʊld/verb 6noun 1forms 5 verb6 •To undo a folding.to unfold a map; to unfold a tablecloth; She unpacks the new dress and unfolds it carefully. •To turn out; to happen; to develop.Events unfolded in an unexpected way. •To become unfolded.The curtains unfolded to reveal the stage. •To lay open to view or contemplation; to bring out in all the details, or by successive development; to reveal.to unfold one's designs; to unfold the principles of a science •To reassemble a line of text that was split across multiple lines. •To release from a fold or pen. noun1 •In functional programming, a kind of higher-order function that is the opposite of a fold. formsunfolded · unfolding · unfoldeth · unfolds · unfoldest