13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 19061 | unadverseness | 9,125 | adenrsuv | 8 | 17,809 | 
                                        
                                                | 19062 | indigitamenta | 9,125 | adegimnt | 8 | 17,811 | 
                                        
                                                | 19063 | archtreasurer | 9,125 | acehrstu | 8 | 17,810 | 
                                        
                                                | 19064 | stethoscopist | 9,128 | cehiopst | 8 | 17,808 | 
                                        
                                                | 19065 | reintrenching | 9,131 | ceghinrt | 8 | 17,807 | 
                                        
                                                | 19066 | rafflesiaceae | 9,132 | acefilrs | 8 | 17,806 | 
                                        
                                                | 19067 | predespondent | 9,132 | denoprst | 8 | 17,804 | 
                                        
                                                | 19068 | proportionate | 9,132 | aeinoprt | 8 | 17,805 | 
                                        
                                                | 19069 | nondefinitive | 9,133 | definotv | 8 | 17,801 | 
                                        
                                                | 19070 | transriverina | 9,133 | aeinrstv | 8 | 17,803 | 
                                        
                                                | 19071 | tetraquetrous | 9,133 | aeoqrstu | 8 | 17,802 | 
                                        
                                                | 19072 | concentrators | 9,134 | acenorst | 8 | 17,800 | 
                                        
                                                | 19073 | preinitiating | 9,135 | aeginprt | 8 | 17,799 | 
                                        
                                                | 19074 | disinvestment | 9,136 | deimnstv | 8 | 17,798 | 
                                        
                                                | 19075 | organogenesis | 9,137 | aeginors | 8 | 17,797 | 
                                        
                                                | 19076 | callaesthetic | 9,137 | acehilst | 8 | 17,796 | 
                                        
                                                | 19077 | casuarinaceae | 9,138 | aceinrsu | 8 | 17,795 | 
                                        
                                                | 19078 | nightlessness | 9,140 | eghilnst | 8 | 17,794 | 
                                        
                                                | 19079 | heterosporous | 9,140 | ehoprstu | 8 | 17,793 | 
                                        
                                                | 19080 | separableness | 9,140 | abelnprs | 8 | 17,792 |