13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 5601 | punctiliosity | 7,454 | cilnopstuy | 10 | 9,050 | 
                                        
                                                | 5602 | metallochromy | 7,454 | acehlmorty | 10 | 9,051 | 
                                        
                                                | 5603 | acrosphacelus | 7,454 | acehloprsu | 10 | 9,052 | 
                                        
                                                | 5604 | piscatorially | 7,454 | aciloprsty | 10 | 9,049 | 
                                        
                                                | 5605 | machicolating | 7,455 | acghilmnot | 10 | 9,047 | 
                                        
                                                | 5606 | pneumonolysis | 7,455 | eilmnopsuy | 10 | 9,048 | 
                                        
                                                | 5607 | tachygraphist | 7,456 | acghiprsty | 10 | 9,046 | 
                                        
                                                | 5608 | camphoraceous | 7,457 | acehmoprsu | 10 | 9,045 | 
                                        
                                                | 5609 | nonhabitually | 7,459 | abhilnotuy | 10 | 9,044 | 
                                        
                                                | 5610 | sulfofication | 7,460 | acfilnostu | 10 | 9,043 | 
                                        
                                                | 5611 | volcanologist | 7,461 | acgilnostv | 10 | 9,041 | 
                                        
                                                | 5612 | basibregmatic | 7,461 | abcegimrst | 10 | 9,042 | 
                                        
                                                | 5613 | protozoacidal | 7,461 | acdiloprtz | 10 | 9,040 | 
                                        
                                                | 5614 | spartanically | 7,462 | acilnprsty | 10 | 9,039 | 
                                        
                                                | 5615 | tubercularize | 7,462 | abceilrtuz | 10 | 9,037 | 
                                        
                                                | 5616 | unregularized | 7,462 | adegilnruz | 10 | 9,038 | 
                                        
                                                | 5617 | supersolemnly | 7,463 | elmnoprsuy | 10 | 9,036 | 
                                        
                                                | 5618 | fluoroscopies | 7,464 | cefiloprsu | 10 | 9,035 | 
                                        
                                                | 5619 | nonspeciously | 7,465 | ceilnopsuy | 10 | 9,034 | 
                                        
                                                | 5620 | extravascular | 7,465 | acelrstuvx | 10 | 9,033 |