13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 18981 | telencephalla | 9,074 | acehlnpt | 8 | 17,891 | 
                                        
                                                | 18982 | acetification | 9,074 | acefinot | 8 | 17,890 | 
                                        
                                                | 18983 | unclementness | 9,075 | celmnstu | 8 | 17,888 | 
                                        
                                                | 18984 | antiasthmatic | 9,075 | achimnst | 8 | 17,889 | 
                                        
                                                | 18985 | transplanters | 9,076 | aelnprst | 8 | 17,884 | 
                                        
                                                | 18986 | mercilessness | 9,076 | ceilmnrs | 8 | 17,887 | 
                                        
                                                | 18987 | contabescence | 9,076 | abcenost | 8 | 17,885 | 
                                        
                                                | 18988 | crimelessness | 9,076 | ceilmnrs | 8 | 17,886 | 
                                        
                                                | 18989 | penitentially | 9,077 | aeilnpty | 8 | 17,883 | 
                                        
                                                | 18990 | transpiration | 9,078 | ainoprst | 8 | 17,880 | 
                                        
                                                | 18991 | translatorial | 9,078 | ailnorst | 8 | 17,879 | 
                                        
                                                | 18992 | interfriction | 9,078 | cefinort | 8 | 17,882 | 
                                        
                                                | 18993 | paraoperation | 9,078 | aeinoprt | 8 | 17,881 | 
                                        
                                                | 18994 | unadornedness | 9,079 | adenorsu | 8 | 17,878 | 
                                        
                                                | 18995 | indeterminism | 9,081 | deimnrst | 8 | 17,877 | 
                                        
                                                | 18996 | gnathostomata | 9,081 | aghmnost | 8 | 17,876 | 
                                        
                                                | 18997 | developedness | 9,082 | delnopsv | 8 | 17,873 | 
                                        
                                                | 18998 | overimitative | 9,082 | aeimortv | 8 | 17,875 | 
                                        
                                                | 18999 | forcelessness | 9,082 | ceflnors | 8 | 17,874 | 
                                        
                                                | 19000 | feasibilities | 9,083 | abefilst | 8 | 17,870 |