Addle-headed is a term used to describe someone who is confused, muddled or disorientated. There are many synonyms for this word, including befuddled, bewildered, dazed, dizzy, mixed up, muddled, muzzy, perplexed, puzzled and addled. All of these words suggest a sense of confusion or disorientation, and can be used to describe someone who is having trouble understanding or comprehending a situation. Whether you are writing fiction, non-fiction or simply trying to craft a strong descriptive phrase, using one of these synonyms can help you create a more vivid and accurate depiction of the person you are describing.