/ ˈkɒnvəluːtɪd; NAmE ˈkɑːn-/ adjective
1.
extremely complicated and difficult to follow :
a convoluted argument / explanation
a book with a convoluted plot
2.
( formal ) having many twists or curves :
a convoluted coastline
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WORD ORIGIN
late 18th cent.: past participle of convolute , from Latin convolutus , past participle of convolvere roll together, intertwine, from con- together + volvere roll.