Keywords: stupid, foolish, idiotic, stupidity, idiocy, absurd
Sign Definition
As a Noun
                                            1.  Behaviour which is not at all sensible. English = stupidity.
                                          
                                          
                                        
                                            2.  The quality of being stupid. English = stupidity.
                                          
                                          
                                        
                                            3.  The quality of being very stupid. English = idiocy.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  To show a lack of good judgement or intelligence and to be not at all sensible. English = (be) stupid, (be) foolish.
                                          
                                          
                                        
                                            2.  To be very stupid. English = (be) idiotic.
                                          
                                          
                                        
                                            3. To be very stupid, silly, unreasonable, inappropriate or ridiculous. English = (be) absurd.
                                          
                                          
                                        Interactive
                                            1.  Used alone to mean that you think that you do not like something and that it annoys you. English = 'How stupid!', 'That's ridiculous!'
                                          
                                          
                                        
                                            2.  Used alone to express irritation with yourself for having done something that is foolish or a mistake. English = 'Oops!'