15 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 7261 | unregretfulness | 9,773 | efglnrstu | 9 | 7,391 | 
                                        
                                                | 7262 | prescriptionist | 9,773 | ceinoprst | 9 | 7,390 | 
                                        
                                                | 7263 | nonhierarchical | 9,774 | acehilnor | 9 | 7,389 | 
                                        
                                                | 7264 | noncoordinating | 9,776 | acdginort | 9 | 7,388 | 
                                        
                                                | 7265 | bipinnatiparted | 9,776 | abdeinprt | 9 | 7,387 | 
                                        
                                                | 7266 | parallelinerved | 9,779 | adeilnprv | 9 | 7,386 | 
                                        
                                                | 7267 | translationally | 9,780 | ailnorsty | 9 | 7,385 | 
                                        
                                                | 7268 | superillustrate | 9,781 | aeilprstu | 9 | 7,384 | 
                                        
                                                | 7269 | phototelescopic | 9,783 | cehilopst | 9 | 7,383 | 
                                        
                                                | 7270 | kindergartening | 9,784 | adegiknrt | 9 | 7,381 | 
                                        
                                                | 7271 | nonconcentrical | 9,784 | aceilnort | 9 | 7,382 | 
                                        
                                                | 7272 | palaeoeremology | 9,789 | aeglmopry | 9 | 7,380 | 
                                        
                                                | 7273 | nonnominalistic | 9,789 | acilmnost | 9 | 7,379 | 
                                        
                                                | 7274 | significantness | 9,790 | acefginst | 9 | 7,378 | 
                                        
                                                | 7275 | electropuncture | 9,791 | celnoprtu | 9 | 7,377 | 
                                        
                                                | 7276 | unescapableness | 9,792 | abcelnpsu | 9 | 7,376 | 
                                        
                                                | 7277 | nonanticipatory | 9,793 | acinoprty | 9 | 7,375 | 
                                        
                                                | 7278 | irrationability | 9,793 | abilnorty | 9 | 7,374 | 
                                        
                                                | 7279 | displeasingness | 9,795 | adegilnps | 9 | 7,373 | 
                                        
                                                | 7280 | ultrafiltration | 9,797 | afilnortu | 9 | 7,372 |