13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 16981 | silicifluoric | 6,778 | cfilorsu | 8 | 19,891 | 
                                        
                                                | 16982 | ovoviviparity | 6,779 | aioprtvy | 8 | 19,890 | 
                                        
                                                | 16983 | scoliokyposis | 6,781 | ciklopsy | 8 | 19,889 | 
                                        
                                                | 16984 | unwillfulness | 6,788 | efilnsuw | 8 | 19,887 | 
                                        
                                                | 16985 | pyrocinchonic | 6,788 | chinopry | 8 | 19,888 | 
                                        
                                                | 16986 | hypobaropathy | 6,791 | abhoprty | 8 | 19,886 | 
                                        
                                                | 16987 | consignifying | 6,792 | cfginosy | 8 | 19,885 | 
                                        
                                                | 16988 | subsensuously | 6,799 | belnosuy | 8 | 19,884 | 
                                        
                                                | 16989 | nonblindingly | 6,801 | bdgilnoy | 8 | 19,883 | 
                                        
                                                | 16990 | onychomycosis | 6,803 | chimnosy | 8 | 19,882 | 
                                        
                                                | 16991 | curricularize | 6,805 | aceilruz | 8 | 19,881 | 
                                        
                                                | 16992 | subcommission | 6,807 | bcimnosu | 8 | 19,880 | 
                                        
                                                | 16993 | microconidium | 6,810 | cdimnoru | 8 | 19,879 | 
                                        
                                                | 16994 | silicofluoric | 6,815 | cfilorsu | 8 | 19,878 | 
                                        
                                                | 16995 | presuccessful | 6,818 | ceflprsu | 8 | 19,877 | 
                                        
                                                | 16996 | nonsulphurous | 6,820 | hlnoprsu | 8 | 19,876 | 
                                        
                                                | 16997 | nonluminously | 6,824 | ilmnosuy | 8 | 19,875 | 
                                        
                                                | 16998 | sacrificially | 6,826 | acfilrsy | 8 | 19,874 | 
                                        
                                                | 16999 | palladinizing | 6,827 | adgilnpz | 8 | 19,873 | 
                                        
                                                | 17000 | botryomycotic | 6,831 | bcimorty | 8 | 19,872 |