In Middle English an adel eye was a putrid egg. The stench of such an egg apparently affected the minds of some witty thinkers, who hatched a comparison between the diminished, unsound quality of an adel (or addle) egg and an empty, confused head-or pate. "Your owne imagination, which was no lesse Idle, then your head was addle all that day," wrote one 17th-century wit at play with the words idle and addle. Today, addle is often found in combination with words referring to one's noggin, as in addlepated,addlebrained, and addle-headed.
Examples of addlepated in a Sentence
some addlepated clerk had confused our hotel reservation with that of another, similarly named, party