The Collaborative International Dictionary
                    Unideaed
                    
                        
                
                                                                    Unideaed \Un`i*de"aed\, a.
   Having no ideas; senseless; frivolous. ``Unideaed girls.''
   
--Mrs. Hemans.
He [Bacon] received the unideaed page [Villiers] into
         his intimacy.                            
--Lord
                                                  Campbell.
Wiktionary
                    unideaed
                    
                        
                
                                                                    a. (context archaic English) Having no ideas; senseless; frivolous.