13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 18941 | pneumonometer | 9,036 | emnoprtu | 8 | 17,931 | 
                                        
                                                | 18942 | manganapatite | 9,037 | aegimnpt | 8 | 17,930 | 
                                        
                                                | 18943 | sexagenarians | 9,039 | aeginrsx | 8 | 17,929 | 
                                        
                                                | 18944 | unsaintliness | 9,041 | aeilnstu | 8 | 17,928 | 
                                        
                                                | 18945 | noncooperator | 9,043 | acenoprt | 8 | 17,927 | 
                                        
                                                | 18946 | soldierliness | 9,043 | deilnors | 8 | 17,924 | 
                                        
                                                | 18947 | immatereality | 9,043 | aeilmrty | 8 | 17,926 | 
                                        
                                                | 18948 | homoeokinesis | 9,043 | ehikmnos | 8 | 17,925 | 
                                        
                                                | 18949 | undiverseness | 9,044 | deinrsuv | 8 | 17,923 | 
                                        
                                                | 18950 | recaulescence | 9,044 | acelnrsu | 8 | 17,922 | 
                                        
                                                | 18951 | nonforeigness | 9,047 | efginors | 8 | 17,921 | 
                                        
                                                | 18952 | coconstituent | 9,047 | ceinostu | 8 | 17,920 | 
                                        
                                                | 18953 | overnobleness | 9,048 | belnorsv | 8 | 17,919 | 
                                        
                                                | 18954 | intrusiveness | 9,051 | einrstuv | 8 | 17,917 | 
                                        
                                                | 18955 | vicegerencies | 9,051 | ceginrsv | 8 | 17,918 | 
                                        
                                                | 18956 | metaphosphate | 9,053 | aehmopst | 8 | 17,916 | 
                                        
                                                | 18957 | refederalized | 9,054 | adefilrz | 8 | 17,913 | 
                                        
                                                | 18958 | nondemolition | 9,054 | deilmnot | 8 | 17,915 | 
                                        
                                                | 18959 | irrigationist | 9,054 | aginorst | 8 | 17,914 | 
                                        
                                                | 18960 | stomatosepsis | 9,056 | aeimopst | 8 | 17,912 |