13 letter Words with the Lowest Letter Frequency Scores
            
            
            
                                
                    | # | Word | Frequency Score | Letters (Alpha) | Unique Letter Count | Ranking (Len) | 
|---|
                                        
                                                | 11981 | superthorough | 7,625 | eghoprstu | 9 | 15,452 | 
                                        
                                                | 11982 | sinoauricular | 7,626 | acilnorsu | 9 | 15,450 | 
                                        
                                                | 11983 | extinguishing | 7,626 | eghinstux | 9 | 15,448 | 
                                        
                                                | 11984 | precommissure | 7,626 | ceimoprsu | 9 | 15,449 | 
                                        
                                                | 11985 | toxophilitism | 7,627 | hilmopstx | 9 | 15,445 | 
                                        
                                                | 11986 | noncombustion | 7,627 | bcimnostu | 9 | 15,446 | 
                                        
                                                | 11987 | noncompounder | 7,627 | cdemnopru | 9 | 15,447 | 
                                        
                                                | 11988 | pidginization | 7,628 | adginoptz | 9 | 15,443 | 
                                        
                                                | 11989 | collectivizes | 7,628 | ceilostvz | 9 | 15,444 | 
                                        
                                                | 11990 | scholasticism | 7,629 | achilmost | 9 | 15,442 | 
                                        
                                                | 11991 | longiloquence | 7,630 | cegilnoqu | 9 | 15,440 | 
                                        
                                                | 11992 | individualist | 7,630 | adilnstuv | 9 | 15,439 | 
                                        
                                                | 11993 | concubinehood | 7,630 | bcdehinou | 9 | 15,441 | 
                                        
                                                | 11994 | pyrophosphate | 7,631 | aehoprsty | 9 | 15,438 | 
                                        
                                                | 11995 | unsyntactical | 7,632 | acilnstuy | 9 | 15,436 | 
                                        
                                                | 11996 | semibarbarous | 7,632 | abeimorsu | 9 | 15,437 | 
                                        
                                                | 11997 | frankmarriage | 7,633 | aefgikmnr | 9 | 15,435 | 
                                        
                                                | 11998 | nonperforming | 7,634 | efgimnopr | 9 | 15,433 | 
                                        
                                                | 11999 | unconjectured | 7,634 | cdejnortu | 9 | 15,434 | 
                                        
                                                | 12000 | puddingheaded | 7,635 | adeghinpu | 9 | 15,431 |