13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 10901 | rhizomorphous | 6,789 | himoprsuz | 9 | 16,531 | 
                                        
                                                | 10902 | uninspiringly | 6,790 | gilnprsuy | 9 | 16,530 | 
                                        
                                                | 10903 | scapulospinal | 6,793 | acilnopsu | 9 | 16,529 | 
                                        
                                                | 10904 | unassiduously | 6,795 | adilnosuy | 9 | 16,528 | 
                                        
                                                | 10905 | subcancellous | 6,796 | abcelnosu | 9 | 16,527 | 
                                        
                                                | 10906 | malleablizing | 6,797 | abegilmnz | 9 | 16,526 | 
                                        
                                                | 10907 | psychanalysis | 6,799 | achilnpsy | 9 | 16,524 | 
                                        
                                                | 10908 | cribriformity | 6,799 | bcfimorty | 9 | 16,525 | 
                                        
                                                | 10909 | phyllostomous | 6,800 | hlmopstuy | 9 | 16,523 | 
                                        
                                                | 10910 | arhythmically | 6,801 | achilmrty | 9 | 16,522 | 
                                        
                                                | 10911 | impolitically | 6,802 | acilmopty | 9 | 16,521 | 
                                        
                                                | 10912 | hypsicephalic | 6,803 | acehilpsy | 9 | 16,520 | 
                                        
                                                | 10913 | parvicellular | 6,807 | aceilpruv | 9 | 16,519 | 
                                        
                                                | 10914 | pusillanimous | 6,808 | ailmnopsu | 9 | 16,518 | 
                                        
                                                | 10915 | circummundane | 6,809 | acdeimnru | 9 | 16,517 | 
                                        
                                                | 10916 | challengingly | 6,809 | aceghilny | 9 | 16,516 | 
                                        
                                                | 10917 | unappealingly | 6,809 | aegilnpuy | 9 | 16,515 | 
                                        
                                                | 10918 | synchronology | 6,810 | cghlnorsy | 9 | 16,514 | 
                                        
                                                | 10919 | arrythmically | 6,811 | achilmrty | 9 | 16,513 | 
                                        
                                                | 10920 | overprovoking | 6,812 | egiknoprv | 9 | 16,512 |