15 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 6721 | salicylaldehyde | 8,730 | acdehilsy | 9 | 7,931 | 
                                        
                                                | 6722 | calculabilities | 8,730 | abceilstu | 9 | 7,930 | 
                                        
                                                | 6723 | omnipercipiency | 8,735 | ceimnopry | 9 | 7,929 | 
                                        
                                                | 6724 | engysseismology | 8,737 | egilmnosy | 9 | 7,928 | 
                                        
                                                | 6725 | salpingopalatal | 8,741 | agilnopst | 9 | 7,927 | 
                                        
                                                | 6726 | mellifluousness | 8,743 | efilmnosu | 9 | 7,926 | 
                                        
                                                | 6727 | caryophyllaceae | 8,744 | acehlopry | 9 | 7,925 | 
                                        
                                                | 6728 | nonoligarchical | 8,747 | acghilnor | 9 | 7,924 | 
                                        
                                                | 6729 | sociolinguistic | 8,752 | cgilnostu | 9 | 7,923 | 
                                        
                                                | 6730 | unparticipating | 8,755 | acginprtu | 9 | 7,922 | 
                                        
                                                | 6731 | nonanarchically | 8,763 | achilnory | 9 | 7,920 | 
                                        
                                                | 6732 | phosphoriferous | 8,763 | efhioprsu | 9 | 7,921 | 
                                        
                                                | 6733 | dihydrochloride | 8,764 | cdehilory | 9 | 7,919 | 
                                        
                                                | 6734 | vertebromammary | 8,766 | abemortvy | 9 | 7,918 | 
                                        
                                                | 6735 | circumincession | 8,773 | ceimnorsu | 9 | 7,917 | 
                                        
                                                | 6736 | overaggravating | 8,777 | aeginortv | 9 | 7,916 | 
                                        
                                                | 6737 | protococcaceous | 8,780 | aceoprstu | 9 | 7,915 | 
                                        
                                                | 6738 | nonappropriable | 8,780 | abeilnopr | 9 | 7,914 | 
                                        
                                                | 6739 | nonencyclopedic | 8,792 | cdeilnopy | 9 | 7,913 | 
                                        
                                                | 6740 | kakistocratical | 8,794 | aciklorst | 9 | 7,912 |