13 letter Words with the Lowest Letter Frequency Scores

#WordFrequency ScoreLetters (Alpha)Unique Letter CountRanking (Len)
18101 phonendoscope 8,385 cdehnops 8 18,771
18102 pyretotherapy 8,386 aehoprty 8 18,770
18103 insubstantial 8,387 abilnstu 8 18,769
18104 civilisedness 8,388 cdeilnsv 8 18,768
18105 peripleuritis 8,389 eilprstu 8 18,766
18106 fortification 8,389 acfinort 8 18,767
18107 tripinnatifid 8,392 adfinprt 8 18,765
18108 semiacidified 8,394 acdefims 8 18,762
18109 nonoppressive 8,394 einoprsv 8 18,763
18110 unrestfulness 8,394 eflnrstu 8 18,764
18111 nondominating 8,396 adgimnot 8 18,760
18112 paravertebral 8,396 abelprtv 8 18,761
18113 irreceptivity 8,396 ceiprtvy 8 18,759
18114 choreographer 8,398 aceghopr 8 18,758
18115 barbarisation 8,401 abinorst 8 18,757
18116 unalleviative 8,401 aeilntuv 8 18,756
18117 indispensible 8,404 bdeilnps 8 18,755
18118 inconcealable 8,404 abceilno 8 18,754
18119 seroprognosis 8,405 eginoprs 8 18,753
18120 postparotitic 8,405 acioprst 8 18,752