13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 12681 | thaumaturgist | 7,947 | aghimrstu | 9 | 14,750 | 
                                        
                                                | 12682 | ineducabilian | 7,947 | abcdeilnu | 9 | 14,751 | 
                                        
                                                | 12683 | falsification | 7,947 | acfilnost | 9 | 14,749 | 
                                        
                                                | 12684 | astrapophobia | 7,948 | abhioprst | 9 | 14,747 | 
                                        
                                                | 12685 | collusiveness | 7,948 | ceilnosuv | 9 | 14,748 | 
                                        
                                                | 12686 | subingression | 7,948 | beginorsu | 9 | 14,746 | 
                                        
                                                | 12687 | turcification | 7,950 | acfinortu | 9 | 14,745 | 
                                        
                                                | 12688 | nonvernacular | 7,951 | acelnoruv | 9 | 14,742 | 
                                        
                                                | 12689 | carbonization | 7,951 | abcinortz | 9 | 14,743 | 
                                        
                                                | 12690 | extragalactic | 7,951 | acegilrtx | 9 | 14,744 | 
                                        
                                                | 12691 | misinformants | 7,952 | afimnorst | 9 | 14,739 | 
                                        
                                                | 12692 | parencephalic | 7,952 | acehilnpr | 9 | 14,740 | 
                                        
                                                | 12693 | troublousness | 7,952 | belnorstu | 9 | 14,741 | 
                                        
                                                | 12694 | hyperpepsinia | 7,952 | aehinprsy | 9 | 14,737 | 
                                        
                                                | 12695 | inextinguible | 7,952 | begilntux | 9 | 14,738 | 
                                        
                                                | 12696 | inclinatorily | 7,953 | acilnorty | 9 | 14,736 | 
                                        
                                                | 12697 | syntonolydian | 7,954 | adilnosty | 9 | 14,735 | 
                                        
                                                | 12698 | promisingness | 7,954 | egimnoprs | 9 | 14,734 | 
                                        
                                                | 12699 | untactfulness | 7,955 | aceflnstu | 9 | 14,733 | 
                                        
                                                | 12700 | nonconceptual | 7,955 | acelnoptu | 9 | 14,732 |