The Collaborative International Dictionary
                    Ambiguousness
                    
                        
                
                                                                    Ambiguousness \Am*big"u*ous*ness\, n. Ambiguity.
Wiktionary
                    ambiguousness
                    
                        
                
                                                                    n. The state or quality of being ambiguous; ambiguity
Usage examples of "ambiguousness".
Stan dispensed congratulations, but he was visibly grumpy about the ambiguousness of Wunsch's responses.