14 letters
- overassessment22
- overcompressed28
- overcompresses27
- oversecretions22
- oxidoreductase27
- paedomorphoses26
- painlessnesses20
- palatialnesses20
- pansexualities27
- particularised23
- particularises22
- passementeries21
- pastoralnesses19
- pathlessnesses21
- peacefulnesses26
- pectinesterase21
- penicillinases24
- perilousnesses20
- perseverations22
- perversenesses22
- perviousnesses23
- philadelphuses28
- phosphokinases29
- phospholipases28
- phosphorolyses27
- phosphorylases27
- photocomposers28
- photosensitive24
- photosensitize29
- photosyntheses24
- phraseological26
- phraseologists22
- physicalnesses26
- picornaviruses26
- pitiablenesses22
- pitilessnesses19
- planlessnesses21
- plasmaphereses26
- pleasantnesses20
- pleasingnesses22
- plotlessnesses20
- pneumoconioses26
- poeticalnesses22
- polyneuritises22
- populousnesses24
- positivenesses22
- possessionless19
- possessiveness22
- postmistresses20
- praiseworthily25
- prankishnesses25
- preciousnesses22
- preconsciouses25
- preparednesses22
- prepossessions21
- presentability24
- presentational20
- presentencings25
- presentimental23
- preservability27
- presettlements22
- previousnesses23
- pridefulnesses24
- priestlinesses19
- priggishnesses24
- princelinesses23
- profoundnesses24
- proletarianise19
- prolificnesses25
- proprietresses20
- prosencephalic30
- prosencephalon28
- provablenesses26
- pseudepigrapha29
- pseudepigraphs29
- pseudepigraphy31
- pseudoclassics26
- pseudomorphism30
- pseudomorphous28
- pseudonymities25
- pseudonymously29
- pseudopregnant26
- pseudosciences26
- pseudoscorpion26
- psychoanalyses28
- psychoneuroses26
- psychosexually36
- punitivenesses24
- purblindnesses25
- purposefulness27
- qualmishnesses31
- quintessential27
- radiosensitive20
- rationalnesses17
- ravenousnesses21
- reactivenesses22
- readablenesses20
- recklessnesses23
- reconsecrating24
- reconsecration22
- reimbursements25
- reliablenesses20
- remorsefulness23
- representation19
- representative22
- resegregations19
- reservationist19
- reservednesses20
- resignednesses19
- resolutenesses17
- restlessnesses16
- retiringnesses18
- revolutionised22
- revolutionises21
- rightfulnesses24
- rigorousnesses18
- rootlessnesses16
- ruthlessnesses19
- salpiglossises21
- salutarinesses17
- sanguinenesses20
- scabrousnesses22
- scornfulnesses24
- scratchinesses23
- seamlessnesses19
- seasonableness20
- secludednesses22
- secretaryships24
- sectarianizing30
- secularization29
- securitization28
- sedimentations20
- sedimentologic25
- sedulousnesses19
- segregationist19
- seismographers24
- seismographies24
- selflessnesses20
- selfsamenesses22
- semasiological24
- semiautomatics24
- semiautonomous23
- semicentennial24
- semicommercial30
- semiconducting29
- semiconductors26
- semidarknesses23
- semifunctional27
- semiofficially30
- semiologically27
- semiporcelains25
- semiretirement21
- sempiternities21
- sensationalise17
- sensationalism20
- sensationalist17
- sensationalize26
- sensiblenesses20
- sensitisations16
- sensitizations25
- sensitometries18
- sensualization27
- sensuousnesses18
- sentimentalise20
- sentimentalism23
- sentimentalist20
- sentimentality22
- sentimentalize29
- separabilities21
- separatenesses18
- separationists18
- septuagenarian22
- sequestrations25
- serializations25
- sericulturists20
- seriocomically27
- seroconversion23
- serodiagnostic21
- seronegativity23
- seropositivity23
- serotoninergic21
- serviceability27
- serviceberries24
- servomechanism30
- sesquipedalian30
- sesquiterpenes28
- severabilities22
- sexploitations26
- sextuplicating32
- sexualizations33
- shamefulnesses25
- sheepishnesses22
- shrewishnesses22
- sinisternesses16
- skillessnesses21
- skillfulnesses26
- skittishnesses21
- slaughterhouse23
- slipperinesses22
- slothfulnesses23