13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
                                        
                                                | 5001 | 
                                                ovorhomboidal | 
                        7,160 | 
                        abdhilmorv | 
                        10 | 
                        9,651 | 
                    
                                        
                                                | 5002 | 
                                                polymetallism | 
                        7,160 | 
                        aeilmopsty | 
                        10 | 
                        9,652 | 
                    
                                        
                                                | 5003 | 
                                                unprolongable | 
                        7,160 | 
                        abeglnopru | 
                        10 | 
                        9,650 | 
                    
                                        
                                                | 5004 | 
                                                unperturbedly | 
                        7,161 | 
                        bdelnprtuy | 
                        10 | 
                        9,649 | 
                    
                                        
                                                | 5005 | 
                                                sulphothionyl | 
                        7,161 | 
                        hilnopstuy | 
                        10 | 
                        9,648 | 
                    
                                        
                                                | 5006 | 
                                                fasciculately | 
                        7,162 | 
                        acefilstuy | 
                        10 | 
                        9,647 | 
                    
                                        
                                                | 5007 | 
                                                linguliferous | 
                        7,162 | 
                        efgilnorsu | 
                        10 | 
                        9,646 | 
                    
                                        
                                                | 5008 | 
                                                psychotherapy | 
                        7,163 | 
                        acehoprsty | 
                        10 | 
                        9,641 | 
                    
                                        
                                                | 5009 | 
                                                heptaphyllous | 
                        7,163 | 
                        aehlopstuy | 
                        10 | 
                        9,645 | 
                    
                                        
                                                | 5010 | 
                                                bewilderingly | 
                        7,163 | 
                        bdegilnrwy | 
                        10 | 
                        9,643 | 
                    
                                        
                                                | 5011 | 
                                                vermilinguial | 
                        7,163 | 
                        aegilmnruv | 
                        10 | 
                        9,642 | 
                    
                                        
                                                | 5012 | 
                                                blastomycosis | 
                        7,163 | 
                        abcilmosty | 
                        10 | 
                        9,644 | 
                    
                                        
                                                | 5013 | 
                                                gyrocompasses | 
                        7,164 | 
                        acegmoprsy | 
                        10 | 
                        9,637 | 
                    
                                        
                                                | 5014 | 
                                                praxeological | 
                        7,164 | 
                        acegiloprx | 
                        10 | 
                        9,638 | 
                    
                                        
                                                | 5015 | 
                                                staphylolysin | 
                        7,164 | 
                        ahilnopsty | 
                        10 | 
                        9,640 | 
                    
                                        
                                                | 5016 | 
                                                semicylindric | 
                        7,164 | 
                        cdeilmnrsy | 
                        10 | 
                        9,639 | 
                    
                                        
                                                | 5017 | 
                                                prethoughtful | 
                        7,165 | 
                        efghloprtu | 
                        10 | 
                        9,635 | 
                    
                                        
                                                | 5018 | 
                                                nonfusibility | 
                        7,165 | 
                        bfilnostuy | 
                        10 | 
                        9,636 | 
                    
                                        
                                                | 5019 | 
                                                polycistronic | 
                        7,166 | 
                        cilnoprsty | 
                        10 | 
                        9,634 | 
                    
                                        
                                                | 5020 | 
                                                irrefrangibly | 
                        7,168 | 
                        abefgilnry | 
                        10 | 
                        9,632 |