Most addle headed refers to someone who is extremely confused, muddled or scatterbrained. Synonyms for this term include bewildered, befuddled, disoriented, muddled, perplexed, and dazed. Other words that can be used to describe someone who is most addle headed include absent-minded, forgetful, inattentive, unobservant, and impractical. These words indicate a lack of focus and concentration, which can lead to confusion and unclear thinking. If you are looking for a way to describe someone who is most addle headed, there are many words to choose from, each with their own nuances and shades of meaning.