13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 17001 | symphyseotomy | 6,833 | ehmopsty | 8 | 19,871 | 
                                        
                                                | 17002 | communitorium | 6,835 | cimnortu | 8 | 19,870 | 
                                        
                                                | 17003 | microbarogram | 6,842 | abcgimor | 8 | 19,869 | 
                                        
                                                | 17004 | muhammadanism | 6,846 | adhimnsu | 8 | 19,868 | 
                                        
                                                | 17005 | ballistically | 6,847 | abcilsty | 8 | 19,867 | 
                                        
                                                | 17006 | amphodiplopia | 6,851 | adhilmop | 8 | 19,865 | 
                                        
                                                | 17007 | precurricular | 6,851 | aceilpru | 8 | 19,866 | 
                                        
                                                | 17008 | macrocosmical | 6,854 | acilmors | 8 | 19,864 | 
                                        
                                                | 17009 | unilingualism | 6,859 | agilmnsu | 8 | 19,863 | 
                                        
                                                | 17010 | iliococcygian | 6,861 | acgilnoy | 8 | 19,862 | 
                                        
                                                | 17011 | uncriticizing | 6,866 | cginrtuz | 8 | 19,861 | 
                                        
                                                | 17012 | philosophling | 6,868 | ghilnops | 8 | 19,860 | 
                                        
                                                | 17013 | pseudisodomum | 6,869 | deimopsu | 8 | 19,859 | 
                                        
                                                | 17014 | limnobiologic | 6,872 | bcgilmno | 8 | 19,858 | 
                                        
                                                | 17015 | physicooptics | 6,873 | chiopsty | 8 | 19,857 | 
                                        
                                                | 17016 | circumcisions | 6,876 | cimnorsu | 8 | 19,855 | 
                                        
                                                | 17017 | circumcission | 6,876 | cimnorsu | 8 | 19,856 | 
                                        
                                                | 17018 | analyzability | 6,877 | abilntyz | 8 | 19,854 | 
                                        
                                                | 17019 | unskilfulness | 6,878 | efiklnsu | 8 | 19,853 | 
                                        
                                                | 17020 | pediculicidal | 6,879 | acdeilpu | 8 | 19,852 |