13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 12621 | unconcessible | 7,926 | bceilnosu | 9 | 14,811 | 
                                        
                                                | 12622 | cummingtonite | 7,926 | cegimnotu | 9 | 14,810 | 
                                        
                                                | 12623 | disaccordance | 7,927 | acdeinors | 9 | 14,809 | 
                                        
                                                | 12624 | corespondency | 7,927 | cdenoprsy | 9 | 14,808 | 
                                        
                                                | 12625 | archidiaconal | 7,927 | acdhilnor | 9 | 14,807 | 
                                        
                                                | 12626 | gerodontology | 7,928 | deglnorty | 9 | 14,802 | 
                                        
                                                | 12627 | noncomplacent | 7,928 | acelmnopt | 9 | 14,803 | 
                                        
                                                | 12628 | chthonophagia | 7,928 | acghinopt | 9 | 14,805 | 
                                        
                                                | 12629 | underprompter | 7,928 | demnoprtu | 9 | 14,804 | 
                                        
                                                | 12630 | postprophetic | 7,928 | cehioprst | 9 | 14,806 | 
                                        
                                                | 12631 | quadriliteral | 7,929 | adeilqrtu | 9 | 14,799 | 
                                        
                                                | 12632 | hagiographers | 7,929 | aeghioprs | 9 | 14,800 | 
                                        
                                                | 12633 | localizations | 7,929 | acilnostz | 9 | 14,801 | 
                                        
                                                | 12634 | uncitizenlike | 7,930 | ceiklntuz | 9 | 14,798 | 
                                        
                                                | 12635 | inflammations | 7,932 | afilmnost | 9 | 14,796 | 
                                        
                                                | 12636 | antipragmatic | 7,932 | acgimnprt | 9 | 14,797 | 
                                        
                                                | 12637 | reciprocatory | 7,932 | aceioprty | 9 | 14,794 | 
                                        
                                                | 12638 | restructuring | 7,932 | ceginrstu | 9 | 14,795 | 
                                        
                                                | 12639 | proprietarily | 7,933 | aeiloprty | 9 | 14,793 | 
                                        
                                                | 12640 | aviculariidae | 7,933 | acdeilruv | 9 | 14,792 |