"Addle headed" is a term used to describe someone who is confused, muddled or unable to think clearly. If you are looking for synonyms for this term, you could use words such as "dizzy," "disoriented," "dazed," "befuddled," "bewildered," "confounded," "fuddled," "puzzled," "stupefied," "silly," or "scatterbrained." These words are all great options to use when describing someone who is struggling to make sense of a situation or find their way through a complex problem. By using one of these synonyms, you can convey the idea of confusion and mental haze in a more nuanced and descriptive way.