18 letter Words with the Lowest Letter Frequency Scores

#WordFrequency ScoreLetters (Alpha)Unique Letter CountRanking (Len)
561 predissatisfaction 11,903 acdefinoprst 12 343
562 trachelectomopexia 11,911 acehilmoprtx 12 342
563 palaeodendrologist 11,943 adegilnoprst 12 341
564 sternoclidomastoid 11,947 acdeilmnorst 12 340
565 supersentimentally 11,955 aeilmnprstuy 12 339
566 hydrometeorologist 11,956 deghilmorsty 12 338
567 counterexplanation 11,958 aceilnoprtux 12 337
568 predeterminability 11,963 abdeilmnprty 12 336
569 superaesthetically 11,979 acehilprstuy 12 335
570 triakisicosahedron 11,984 acdehiknorst 12 334
571 intercartilaginous 11,989 acegilnorstu 12 333
572 overfastidiousness 11,994 adefinorstuv 12 331
573 sulfonethylmethane 11,994 aefhlmnostuy 12 332
574 pseudomenstruation 12,002 adeimnoprstu 12 330
575 chemotherapeutical 12,006 acehilmoprtu 12 329
576 unconfidentialness 12,011 acdefilnostu 12 328
577 comprehensibleness 12,036 bcehilmnoprs 12 326
578 interdestructively 12,036 cdeilnrstuvy 12 327
579 oversophistication 12,040 acehinoprstv 12 325
580 nonspeculativeness 12,046 aceilnopstuv 12 324