13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 12521 | sacrospinalis | 7,886 | acilnoprs | 9 | 14,912 | 
                                        
                                                | 12522 | strangulating | 7,887 | agilnrstu | 9 | 14,910 | 
                                        
                                                | 12523 | troubadourist | 7,888 | abdiorstu | 9 | 14,907 | 
                                        
                                                | 12524 | allochthonous | 7,888 | achlnostu | 9 | 14,908 | 
                                        
                                                | 12525 | dephosphorize | 7,888 | dehioprsz | 9 | 14,909 | 
                                        
                                                | 12526 | unabidingness | 7,889 | abdeginsu | 9 | 14,906 | 
                                        
                                                | 12527 | ciconiiformes | 7,889 | cefimnors | 9 | 14,905 | 
                                        
                                                | 12528 | rebarbatively | 7,891 | abeilrtvy | 9 | 14,904 | 
                                        
                                                | 12529 | chronographer | 7,891 | aceghnopr | 9 | 14,902 | 
                                        
                                                | 12530 | caesaropapism | 7,891 | aceimoprs | 9 | 14,901 | 
                                        
                                                | 12531 | dissimilating | 7,891 | adgilmnst | 9 | 14,903 | 
                                        
                                                | 12532 | biodegradable | 7,892 | abdegilor | 9 | 14,900 | 
                                        
                                                | 12533 | uncongealable | 7,893 | abceglnou | 9 | 14,899 | 
                                        
                                                | 12534 | heptasyllable | 7,894 | abehlpsty | 9 | 14,898 | 
                                        
                                                | 12535 | addressograph | 7,895 | adeghoprs | 9 | 14,893 | 
                                        
                                                | 12536 | unlikableness | 7,895 | abeiklnsu | 9 | 14,897 | 
                                        
                                                | 12537 | grainsickness | 7,895 | acegiknrs | 9 | 14,896 | 
                                        
                                                | 12538 | preappointing | 7,895 | aeginoprt | 9 | 14,892 | 
                                        
                                                | 12539 | dialectologic | 7,895 | acdegilot | 9 | 14,895 | 
                                        
                                                | 12540 | clonorchiasis | 7,895 | achilnors | 9 | 14,894 |