Full Definition of WIMPLE1 : a cloth covering worn over the head and around the neck and chin especially by women in the late medieval period and by some nuns 2 Scottish a : a crafty turn : twist b : curve, bend See wimple defined for English-language learners See wimple defined for kids Illustration of WIMPLEOrigin of WIMPLEMiddle English wimpel, from Old English; perhaps akin to Old English w??p