Keywords: dullness, dull
Sign Definition
As a Noun
                                            1.  The condition of colours or lights being not bright. English = dullness.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  Of a colour or light, to be not bright. English = (be) dull.
                                          
                                          
                                        
                                            2.  Of a colour or light, to become less bright. English = dull.
                                          
                                          
                                         
                  
                      