13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 17521 | unparallelled | 7,819 | adelnpru | 8 | 19,351 | 
                                        
                                                | 17522 | unparticipant | 7,821 | acinprtu | 8 | 19,349 | 
                                        
                                                | 17523 | ineligibility | 7,821 | begilnty | 8 | 19,350 | 
                                        
                                                | 17524 | cardioschisis | 7,825 | acdhiors | 8 | 19,348 | 
                                        
                                                | 17525 | pollinization | 7,826 | ailnoptz | 8 | 19,347 | 
                                        
                                                | 17526 | numismatician | 7,826 | acimnstu | 8 | 19,346 | 
                                        
                                                | 17527 | unmountainous | 7,827 | aimnostu | 8 | 19,345 | 
                                        
                                                | 17528 | nonabsorbable | 7,827 | abelnors | 8 | 19,343 | 
                                        
                                                | 17529 | appropriative | 7,827 | aeioprtv | 8 | 19,344 | 
                                        
                                                | 17530 | circumference | 7,828 | cefimnru | 8 | 19,341 | 
                                        
                                                | 17531 | misproportion | 7,828 | imnoprst | 8 | 19,342 | 
                                        
                                                | 17532 | colonialising | 7,829 | acgilnos | 8 | 19,339 | 
                                        
                                                | 17533 | unbiliousness | 7,829 | beilnosu | 8 | 19,340 | 
                                        
                                                | 17534 | metascutellum | 7,829 | acelmstu | 8 | 19,338 | 
                                        
                                                | 17535 | fossiliferous | 7,832 | efilorsu | 8 | 19,337 | 
                                        
                                                | 17536 | discontinuous | 7,833 | cdinostu | 8 | 19,336 | 
                                        
                                                | 17537 | antarctically | 7,833 | acilnrty | 8 | 19,335 | 
                                        
                                                | 17538 | cannibalistic | 7,834 | abcilnst | 8 | 19,334 | 
                                        
                                                | 17539 | philosophised | 7,834 | dehilops | 8 | 19,333 | 
                                        
                                                | 17540 | iridodialysis | 7,835 | adilorsy | 8 | 19,331 |