13 letter Words with the Lowest Letter Frequency Scores

#WordFrequency ScoreLetters (Alpha)Unique Letter CountRanking (Len)
1981 supplementary 7,573 aelmnprstuy 11 2,828
1982 manuscription 7,574 acimnoprstu 11 2,827
1983 isobenzofuran 7,575 abefinorsuz 11 2,826
1984 brachiopodist 7,576 abcdhioprst 11 2,825
1985 valedictorily 7,577 acdeilortvy 11 2,824
1986 conjecturable 7,578 abcejlnortu 11 2,822
1987 quasiparticle 7,578 aceilpqrstu 11 2,823
1988 purifications 7,579 acfinoprstu 11 2,818
1989 subepiglottal 7,579 abegilopstu 11 2,819
1990 unspecialized 7,579 acdeilnpsuz 11 2,821
1991 undiscomfited 7,579 cdefimnostu 11 2,820
1992 urbanologists 7,580 abgilnorstu 11 2,816
1993 chromatolysis 7,580 achilmorsty 11 2,817
1994 gynecomastism 7,581 acegimnosty 11 2,815
1995 lexicographer 7,582 aceghiloprx 11 2,812
1996 madrigalesque 7,582 adegilmqrsu 11 2,813
1997 inconformable 7,582 abcefilmnor 11 2,811
1998 nonscriptural 7,582 acilnoprstu 11 2,814
1999 ruggedization 7,584 adeginortuz 11 2,810
2000 apprehensibly 7,586 abehilnprsy 11 2,809