noun. 
                    Lack of constancy in action, feeling, etc.; mutability or instability; unsteadiness; fickleness: as, the inconstancy of a flame, or of one's temper.
                  
                
                  
                    noun. 
                    Lack of sameness or uniformity; dissimilitude.
                  
                
                  
                    noun. 
                    Synonyms Changeableness, vacillation, wavering.