What is another word for addlebrain?
Pronunciation: [ˈadə͡lbɹˌe͡ɪn] (IPA) 
The term addlebrain is an old-fashioned insult that is used to describe someone who is foolish or scatterbrained. However, if you are looking for alternative words to describe someone who is not particularly bright, there are many good options to choose from. For starters, you might use the word "dopey" to convey the idea that someone is a bit slow or dim-witted. Alternatively, you could use the word "simpleton" to suggest that someone lacks intelligence or common sense. Other great words to describe foolishness can include "doltish," "idiotic," "witless," or "imbecilic." Ultimately, the best word to choose will depend on the context in which it is being used, as well as the tone and intent of the speaker.
