13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
                                        
                                                | 9921 | 
                                                gasterotricha | 
                        9,043 | 
                        aceghiorst | 
                        10 | 
                        4,732 | 
                    
                                        
                                                | 9922 | 
                                                practitioners | 
                        9,044 | 
                        aceinoprst | 
                        10 | 
                        4,730 | 
                    
                                        
                                                | 9923 | 
                                                unsilhouetted | 
                        9,044 | 
                        dehilnostu | 
                        10 | 
                        4,731 | 
                    
                                        
                                                | 9924 | 
                                                confederacies | 
                        9,046 | 
                        acdefinors | 
                        10 | 
                        4,726 | 
                    
                                        
                                                | 9925 | 
                                                operabilities | 
                        9,046 | 
                        abeiloprst | 
                        10 | 
                        4,729 | 
                    
                                        
                                                | 9926 | 
                                                nonrhetorical | 
                        9,046 | 
                        acehilnort | 
                        10 | 
                        4,728 | 
                    
                                        
                                                | 9927 | 
                                                holosiphonate | 
                        9,046 | 
                        aehilnopst | 
                        10 | 
                        4,727 | 
                    
                                        
                                                | 9928 | 
                                                antireduction | 
                        9,047 | 
                        acdeinortu | 
                        10 | 
                        4,725 | 
                    
                                        
                                                | 9929 | 
                                                sterelminthus | 
                        9,047 | 
                        ehilmnrstu | 
                        10 | 
                        4,724 | 
                    
                                        
                                                | 9930 | 
                                                demyelination | 
                        9,048 | 
                        adeilmnoty | 
                        10 | 
                        4,722 | 
                    
                                        
                                                | 9931 | 
                                                regimentalled | 
                        9,048 | 
                        adegilmnrt | 
                        10 | 
                        4,723 | 
                    
                                        
                                                | 9932 | 
                                                tetrachronous | 
                        9,048 | 
                        acehnorstu | 
                        10 | 
                        4,721 | 
                    
                                        
                                                | 9933 | 
                                                penthemimeral | 
                        9,050 | 
                        aehilmnprt | 
                        10 | 
                        4,719 | 
                    
                                        
                                                | 9934 | 
                                                hepatectomize | 
                        9,050 | 
                        acehimoptz | 
                        10 | 
                        4,720 | 
                    
                                        
                                                | 9935 | 
                                                sternothyroid | 
                        9,051 | 
                        dehinorsty | 
                        10 | 
                        4,718 | 
                    
                                        
                                                | 9936 | 
                                                ministeriable | 
                        9,052 | 
                        abeilmnrst | 
                        10 | 
                        4,716 | 
                    
                                        
                                                | 9937 | 
                                                synentognathi | 
                        9,052 | 
                        aeghinosty | 
                        10 | 
                        4,714 | 
                    
                                        
                                                | 9938 | 
                                                unethicalness | 
                        9,052 | 
                        acehilnstu | 
                        10 | 
                        4,713 | 
                    
                                        
                                                | 9939 | 
                                                helicoprotein | 
                        9,052 | 
                        cehilnoprt | 
                        10 | 
                        4,715 | 
                    
                                        
                                                | 9940 | 
                                                neurodermitis | 
                        9,052 | 
                        deimnorstu | 
                        10 | 
                        4,717 |