13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 17021 | noninvincibly | 6,881 | bcilnovy | 8 | 19,851 | 
                                        
                                                | 17022 | unpronouncing | 6,881 | cginopru | 8 | 19,850 | 
                                        
                                                | 17023 | unbalanceably | 6,892 | abcelnuy | 8 | 19,849 | 
                                        
                                                | 17024 | infallibilism | 6,893 | abfilmns | 8 | 19,848 | 
                                        
                                                | 17025 | unbeginningly | 6,896 | begilnuy | 8 | 19,847 | 
                                        
                                                | 17026 | coracomorphic | 6,899 | achimopr | 8 | 19,846 | 
                                        
                                                | 17027 | aulacocarpous | 6,900 | acloprsu | 8 | 19,845 | 
                                        
                                                | 17028 | sociologizing | 6,902 | cgilnosz | 8 | 19,844 | 
                                        
                                                | 17029 | phalacrocorax | 6,907 | achloprx | 8 | 19,843 | 
                                        
                                                | 17030 | cryptopyrrole | 6,909 | celoprty | 8 | 19,842 | 
                                        
                                                | 17031 | haggiographal | 6,910 | aghilopr | 8 | 19,840 | 
                                        
                                                | 17032 | nonconcluding | 6,910 | cdgilnou | 8 | 19,841 | 
                                        
                                                | 17033 | noninfallibly | 6,911 | abfilnoy | 8 | 19,839 | 
                                        
                                                | 17034 | insufficiency | 6,914 | cefinsuy | 8 | 19,838 | 
                                        
                                                | 17035 | cannibalizing | 6,930 | abcgilnz | 8 | 19,837 | 
                                        
                                                | 17036 | nonofficially | 6,938 | acfilnoy | 8 | 19,836 | 
                                        
                                                | 17037 | catabolically | 6,941 | abciloty | 8 | 19,835 | 
                                        
                                                | 17038 | cycloolefinic | 6,945 | cefilnoy | 8 | 19,834 | 
                                        
                                                | 17039 | conchological | 6,946 | acghilno | 8 | 19,833 | 
                                        
                                                | 17040 | uneffulgently | 6,950 | efglntuy | 8 | 19,831 |