Definition: The word "Addling" seems to be a slang term, but it doesn't have a clear definition. However, let me give you some possible meanings: 1. A person who is overly dependent or emotionally attached to someone else: a "addling child" 2. A person who behaves foolishly and impulsively: a "addled mind" 3. A person who is easily influenced by others: a "addle-brained individual"