14 letters
- postcapitalist24
- postcollegiate24
- postconception28
- postconvention27
- postcopulatory27
- postdebutantes23
- postdepression22
- posteriorities17
- posterolateral19
- postexperience31
- postganglionic27
- postgraduation22
- posthumousness25
- postindustrial21
- postliberation22
- postmastectomy28
- postmastership25
- postmenopausal26
- postmillennial25
- postmistresses20
- postmodernisms25
- postmodernists22
- postpositional22
- postpositively27
- postproduction26
- postpubescents28
- postretirement21
- posttensioning22
- predisposition22
- prepossessions21
- preposterously24
- presupposition25
- prognosticated24
- prognosticates23
- prognosticator23
- propositioning24
- proscriptively30
- prosencephalic30
- prosencephalon28
- prosperousness22
- prostaglandins23
- prosthetically26
- prosthodontics24
- prosthodontist21
- pseudosciences26
- pseudoscorpion26
- psychoneuroses26
- psychoneurosis26
- psychosexually36
- psychosocially31
- psychosomatics30
- psychosurgeons28
- psychosurgical31
- purposefulness27
- pyrophosphates29
- radiosensitive20
- radiostrontium20
- recompositions24
- redispositions19
- rehospitalized30
- rehospitalizes29
- retrospections21
- retrospectives24
- rhodochrosites22
- ribonucleoside24
- salpiglossises21
- scrupulosities23
- serodiagnostic21
- seropositivity23
- spectroscopies26
- spectroscopist26
- sporotrichoses22
- sporotrichosis22
- stereospecific26
- stratovolcanos23
- subatmospheric29
- submicroscopic33
- superimposable28
- superphosphate28
- superpositions22
- supervirtuosos23
- supposititious22
- tachistoscopes25
- tachistoscopic28
- theosophically28
- thermostatting22
- thyrotoxicoses28
- thyrotoxicosis28
- tracheostomies22
- transpositions19
- treponematoses21
- treponematosis21
- underexposures28
- ungenerosities19
- unostentatious18
- urediniospores20
- voluminosities24
- xenodiagnostic29